// JavaScript Document



/*

Facelift Image Replacement v1.2 beta 3

Facelift was written and is maintained by Cory Mawhorter.  

It is available from http://facelift.mawhorter.net/



===



This file is part of Facelife Image Replacement ("FLIR").



FLIR is free software: you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation, either version 3 of the License, or

(at your option) any later version.



FLIR is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU General Public License for more details.



You should have received a copy of the GNU General Public License

along with Foobar.  If not, see <http://www.gnu.org/licenses/>.

*/



var FLIR = {

	version: '1.2 beta3'

	

	,path: 'fliR/facelift/'

	,classnameIgnore: false

	,replaceLinks: true

	

	,findEmbededFonts: false

	,embededFonts: {}



	,flirElements: []

	

	,isCraptastic: true

	,isIE: true



	,defaultStyle: null

	,classStyles: {}

	

	,ignoredElements: 'BR,HR,IMG,INPUT,SELECT'

	

	,checkImageSupport: false

	,imagesDisabled: null

	

	,callQueue: []

	,dpi: 96

	

	// either (options Object, fstyle FLIRStyle Object) or (fstyle FLIRStyle Object)

	,init: function(options, fstyle) { // or options for flir style

		if(this.isFStyle(options)) { // (fstyle FLIRStyle Object)

			this.defaultStyle = options;

		}else { // [options Object, fstyle FLIRStyle Object]

			if(typeof options != 'undefined')

				this.loadOptions(options);

		

			if(typeof fstyle == 'undefined') {

				this.defaultStyle = new FLIRStyle();

			}else {

				if(this.isFStyle(fstyle))

					this.defaultStyle = fstyle;

				else

					this.defaultStyle = new FLIRStyle(fstyle);

			}

		}

	

		if(this.checkImageSupport)

			DetectImageState.init(this.path+'generate.php', this._detection_complete);

		else

			this.imagesDisabled = false;

			

		this.calcDPI();

			

		if(this.findEmbededFonts)

			this.discoverEmbededFonts();

		

		this.isIE = (navigator.userAgent.toLowerCase().indexOf('msie')>-1 && navigator.userAgent.toLowerCase().indexOf('opera')<0);

		this.isCraptastic = (typeof document.body.style.maxHeight=='undefined');

		

		if(this.isIE) {

			this.flirIERepObj = [];

			this.flirIEHovEls = [];

			this.flirIEHovStyles = [];	

		}

	}

	

	,loadOptions: function(options) {

		for(var i in options)

			if(typeof this[i] != 'function')

				this[i] = options[i];

	}

	

	,_add_to_queue: function(fn,args) {

		FLIR.callQueue.push([fn,args]);

	}

	

	,_detection_complete: function(disabled) {

		FLIR.imagesDisabled = disabled;

		

		if(FLIR.callQueue.length > 0) {

			for(var i=0; i< FLIR.callQueue.length; i++) {

				switch(FLIR.callQueue[i][1].length) {

					case 0:

						FLIR[FLIR.callQueue[i][0]]();

						break;

					case 1:

						FLIR[FLIR.callQueue[i][0]](FLIR.callQueue[i][1][0]);

						break;

					case 2:

						FLIR[FLIR.callQueue[i][0]](FLIR.callQueue[i][1][0], FLIR.callQueue[i][1][1]);

						break;

				}

			}

		}

				

	}

	

	

	

	,auto: function(els) {

		if(FLIR.imagesDisabled == null)

			return this._add_to_queue('auto', arguments);

		else if (FLIR.imagesDisabled)

			return;



		var tags = typeof els=='undefined'?['h1','h2','h3','h4','h5']:(els.indexOf && els.indexOf(',')>-1?els.split(','):els);

		var elements;

		for(var i=0; i<tags.length; i++) {

			elements = this.getElements(tags[i]);			

			if(elements.length>0)

				this.replace(elements);

		}

	}

	

	

	,hover: function(e) {

		var o=FLIR.evsrc(e);

		var targ=o;

		var targDescHover = o.flirHasHover;

		var hoverTree = o;



		var on = (e.type == 'mouseover');

		

		while(o != document.body && !o.flirMainObj) {

			o = FLIR.getParentNode(o);

			

			if(!targDescHover) {

					targDescHover = o.flirHasHover;

					hoverTree = o;

			}

		}

		

		if(o==document.body) return;

		

		var FStyle = FLIR.getFStyle(o);

		if(on && FStyle != FStyle.hoverStyle)

			FStyle = FStyle.hoverStyle;

		

		var objs = FLIR.getChildren(hoverTree);

		if(objs.length == 0 || (objs.length == 1 && (objs[0].flirImage || objs[0].flirHasHover))) {

			objs = [hoverTree];

		}else if(objs.length == 1 && !FLIR.isIgnoredElement(objs[0])) {

			var subobjs = FLIR.getChildren(objs[0]);

			if(subobjs.length > 0)

				if((subobjs.length==1 && !subobjs[0].flirImage) || subobjs.length > 1)

					objs = subobjs;

		}



		var rep_obj;

		for(var i=0; i < objs.length; i++) {

			rep_obj = objs[i];

			if(rep_obj.nodeName == 'IMG') continue;

			if(!rep_obj.innerHTML) continue; // IE 



			if(FLIR.isIE) {

				var idx = FLIR.flirIEHovEls.length;

				FLIR.flirIERepObj[idx] = rep_obj;

				FLIR.flirIEHovStyles[idx] = FStyle;

				

				if(!FLIR.isCraptastic) {

					if(FStyle.useBackgroundMethod && FLIR.getStyle(rep_obj, 'display') == 'block') {

						FLIR.flirIEHovEls[idx] = rep_obj;

						rep_obj.style.background='url('+(on?FStyle.generateURL(rep_obj):rep_obj.flirOrig)+') no-repeat';

						setTimeout('FLIR.flirIERepObj['+idx+'].style.background = "url("+('+on+' ? FLIR.flirIEHovStyles['+idx+'].generateURL(FLIR.flirIERepObj['+idx+']) : FLIR.flirIERepObj['+idx+'].flirOrig)+") no-repeat";', 0);

					}else {

						FLIR.flirIEHovEls[idx] = rep_obj.flirImage ? rep_obj : FLIR.getChildren(rep_obj)[0];

						setTimeout('FLIR.flirIEHovEls['+idx+'].src = '+on+' ? FLIR.flirIEHovStyles['+idx+'].generateURL(FLIR.flirIERepObj['+idx+'], FLIR.flirIEHovEls['+idx+'].alt) : FLIR.flirIERepObj['+idx+'].flirOrig;', 0);

					}

				}else {

					FLIR.flirIEHovEls[idx] = rep_obj.flirImage ? rep_obj : FLIR.getChildren(rep_obj)[0];

					setTimeout('  FLIR.flirIEHovEls['+idx+'].style.filter = \'progid:DXImageTransform.Microsoft.AlphaImageLoader(src="\'+FLIR.flirIEHovStyles['+idx+'].generateURL(FLIR.flirIERepObj['+idx+'], FLIR.flirIEHovEls['+idx+'].alt)+\'", sizingMethod="image")\';  ', 0);

				}

			}else {

				if(FStyle.useBackgroundMethod && FLIR.getStyle(rep_obj, 'display') == 'block') {

					rep_obj.style.background='url('+(on?FStyle.generateURL(rep_obj):rep_obj.flirOrig)+') no-repeat';

				}else {

					var img = rep_obj.flirImage ? rep_obj : FLIR.getChildren(rep_obj)[0];

					img.src = on?FStyle.generateURL(rep_obj, img.alt):rep_obj.flirOrig;

				}

			}

		}

	}



	,addHover: function(obj) {

		obj.flirHasHover = true;

		

		if(obj.addEventListener) {

			obj.addEventListener( 'mouseover', FLIR.hover, false );

			obj.addEventListener( 'mouseout', FLIR.hover, false );

		}else if (obj.attachEvent) {

			obj.attachEvent( 'onmouseover', function() { FLIR.hover( window.event ); } );

			obj.attachEvent( 'onmouseout', function() { FLIR.hover( window.event ); } );

		}

	}

	

	,replace: function(o, fstyle) {

		if(FLIR.imagesDisabled == null)

			return this._add_to_queue('replace', arguments);

		else if (FLIR.imagesDisabled)

			return;

			

		var FStyle = this.isFStyle(fstyle) ? fstyle : this.getFStyle(o, fstyle);



		if(typeof o == 'string')

			o = this.getElements(o);

		

		if(typeof o.length != 'undefined') {

			if(o.length == 0) return;

			

			for(var i=0; i< o.length; i++)

				this.replace(o[i], FStyle);

			

			return;

		}

		

		o.flirMainObj = true;

		this.setFStyle(o, FStyle);

		

		if(this.findEmbededFonts && typeof this.embededFonts[FStyle.getFont(o)] != 'undefined')

			return;

		

		if(FStyle != FStyle.hoverStyle && !o.flirHasHover)

			FLIR.addHover(o);



		var objs = FLIR.getChildren(o);

		if(objs.length == 0) {

			objs = [o];

		}else if(objs.length == 1 && !this.isIgnoredElement(objs[0])) {

			// only add a hover to the link if the parent didn't get one

			if(objs[0].nodeName=='A' && !o.flirHasHover && !objs[0].flirHasHover)

				FLIR.addHover(objs[0]);

			

			var subobjs = FLIR.getChildren(objs[0]);

			if(subobjs.length > 0)

				objs = subobjs;

		}else {

			var nobjs = [];

			for(var i=0; i<objs.length; i++) {

				if(this.isIgnoredElement(objs[i])) continue;

				nobjs.push(objs[i]);

			}

			

			if(nobjs.length==0)

				objs = [o];

		}

		

		var rep_obj;

		for(var i=0; i < objs.length; i++) {

			rep_obj = objs[i];



			if(rep_obj.nodeName == 'IMG' || (FLIR.getChildren(rep_obj).length==1 && FLIR.getChildren(rep_obj)[0].nodeName == 'IMG')) continue;

			if(!rep_obj.innerHTML) continue; // IE



			if(FLIR.hasClass(rep_obj, 'flir-replaced')) continue;

			

			if(rep_obj.nodeName == 'A' && !rep_obj.flirHasHover)

				FLIR.addHover(rep_obj);



			if(!this.isCraptastic)

				if(FStyle.useBackgroundMethod && this.getStyle(rep_obj, 'display') == 'block')

					this.replaceMethodBackground(rep_obj, FStyle);

				else

					this.replaceMethodOverlay(rep_obj, FStyle);

			else

				this.replaceMethodCraptastic(rep_obj, FStyle);

			

			rep_obj.className += ' flir-replaced';

		}

	}

	

	,replaceMethodBackground: function(o, FStyle) {

		var oid = this.saveObject(o);

		var url = FStyle.generateURL(o);

		

		var tmp = new Image();

		tmp.onload = function() {

			FLIR.flirElements[oid].style.width=this.width+'px';

			FLIR.flirElements[oid].style.height=this.height+'px';

		};

		tmp.src = url;

		

		o.style.background = 'url('+url.replace(/ /g, '%20')+') no-repeat';

		o.flirOrig = url;

		

		o.oldTextIndent = o.style.textIndent;

		o.style.textIndent='-9999px';

		

		if(FStyle != FStyle.hoverStyle) {

			var h_img = new Image();

			h_img.src = FStyle.hoverStyle.generateURL(o, img.alt);

		}

	}



	,replaceMethodOverlay: function(o, FStyle) {

		var oid = this.saveObject(o);

		var img = document.createElement('IMG');



		img.flirImage = true;

		img.alt = this.sanitizeHTML(o.innerHTML);

		img.src = FStyle.generateURL(o);

		img.style.border='none';

		

		o.flirOrig = img.src;

		o.innerHTML='';

		o.appendChild(img);

		

		if(FStyle != FStyle.hoverStyle) {

			var h_img = new Image();

			h_img.src = FStyle.hoverStyle.generateURL(o, img.alt);

		}

	}



	,replaceMethodCraptastic: function(o, FStyle) {

		var oid = this.saveObject(o);

		var url = FStyle.generateURL(o);

		

		var img = document.createElement('IMG');



		img.flirImage = true;

		img.alt = this.sanitizeHTML(o.innerHTML);		

		img.src = this.path+'spacer.png';

		img.style.width=o.offsetWidth+'px';

		img.style.height=o.offsetHeight+'px';

		img.style.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src="'+url+'", sizingMethod="image")';



		o.flirOrig = url;

		o.innerHTML='';

		o.appendChild(img);

		

		if(FStyle != FStyle.hoverStyle) {

			var h_img = new Image();

			h_img.src = FStyle.hoverStyle.generateURL(o, img.alt);

		}

	}



	,saveObject: function(o) {

		if(typeof o.flirId == 'undefined') {

			o.flirId = this.getUID();

			this.flirElements[o.flirId] = o;

		}

		

		return o.flirId;

	}

	

	,getUID: function() {

		var prefix='flir-';

		var id=prefix+Math.random().toString().split('.')[1];

		var i=0;

		while(typeof this.flirElements[id] != 'undefined') {

			if(i>100000) {

				console.error('Facelift: Unable to generate unique id.');	

			}

			id=prefix+Math.random().toString().split('.')[1];

			i++;

		}

		

		return id;

	}

	

	,getElements: function(tag) {

		var found = [];

		var objs,subels,cn,childs,tag,el,matches,subel,rep_el;

	

		el = tag;

		

		subel=false;

		if(el.indexOf(' ')>-1) {

			var parts = el.split(' ');

			el = parts[0];

			subel = parts[1];

		}

		

		var grain_id=false;

		if(el.indexOf('#') > -1) {

			grain_id = el.split('#')[1];

			tag = el.split('#')[0];

		}



		var grain_cn=false;

		if(el.indexOf('.') > -1) {

			grain_cn = el.split('.')[1];

			tag = el.split('.')[0];

		}



		objs = document.getElementsByTagName(tag);

		for(var p=0; p<objs.length; p++) {

			if(objs[p].nodeType != 1) continue;

			matches = false;

			cn = objs[p].className?objs[p].className:'';

			

			if(grain_id && objs[p].id && objs[p].id == grain_id)

				matches=true;

			if(grain_cn && FLIR.hasClass(objs[p], grain_cn))

				matches=true;

			if(!grain_id && !grain_cn)

				matches=true;

			

			if(!matches) continue;

			if(this.classnameIgnore && cn.indexOf(this.classnameIgnore)>-1) continue;

			

			subels = false != subel ? objs[p].getElementsByTagName(subel) : [objs[p]];

			for(var pp=0; pp<subels.length; pp++) {

				rep_el = subels[pp];

				if(this.classnameIgnore && rep_el.className && rep_el.className.indexOf(this.classnameIgnore)>-1) continue;



				if(!this.replaceLinks) {

					childs = this.getChildren(rep_el);

					// skip any links that have a first child that is a link (assuming all text for that element is a link then)

					if(childs.length>0 && childs[0].nodeName=='A') continue; 

					

					// if direct parent is a link then skip (assuming entire header is a link);

					if(this.getParentNode(rep_el).nodeName=='A') continue;

				}

				

				found.push(rep_el);

			}

		}

		

		return found;

	}

	

	,discoverEmbededFonts: function() {

		this.embededFonts = {};

		for(var i in document.styleSheets) {

			if(!document.styleSheets[i].cssRules) continue;

			for(var ii in document.styleSheets[i].cssRules) {

				if(!document.styleSheets[0].cssRules[ii]) continue;

				var node = document.styleSheets[0].cssRules[ii];

				

				if(node.type && node.type == node.FONT_FACE_RULE) {

					var nodesrc = node.style.getPropertyValue('src').match(/url\("?([^"\)]+\.[ot]tf)"?\)/i)[1];

					var font = node.style.getPropertyValue('font-family');

					if(font.indexOf(',')) {

						font = font.split(',')[0];

					}

				

					font = font.replace(/['"]/g, '').toLowerCase();

					

					if(font!='' && nodesrc != '')

						this.embededFonts[font] = nodesrc;

				}

			}

		}	

	}



	,getStyle: function(el,prop) {

		if(el.currentStyle) {

			if(prop.indexOf('-') > -1)

				prop = prop.split('-')[0]+prop.split('-')[1].substr(0, 1).toUpperCase()+prop.split('-')[1].substr(1);

			var y = el.currentStyle[prop];

		}else if(window.getComputedStyle) {

			var y = document.defaultView.getComputedStyle(el,'').getPropertyValue(prop);

		}

		return y;

	}

		

	,getChildren: function(n) {

		var children=[];

		if(n && n.hasChildNodes())

			for(var i in n.childNodes)

				if(n.childNodes[i] && n.childNodes[i].nodeType == 1)

					children[children.length]=n.childNodes[i];

	

		return children;

	}

	

	,getParentNode: function(n) {

		var o=n.parentNode;

		while(o != document && o.nodeType != 1)

			o=o.parentNode;

	

		return o;

	}

	

	,hasClass: function(o, cn) {

		return (o && o.className && o.className.indexOf(cn)>-1);

	}

	

	,evsrc: function(e) {

		var o;

		if (e.target) o = e.target;

		else if (e.srcElement) o = e.srcElement;

		if (o.nodeType == 3) // defeat Safari bug

			o = o.parentNode;	

			

		return o;

	}

	

	,calcDPI: function() {

		if(screen.logicalXDPI) {

			var dpi = screen.logicalXDPI;

		}else {

			var id = 'flir-dpi-div-test';

			if(document.getElementById(id)) {

				var test = document.getElementById(id);

			}else {

				var test = document.createElement('DIV');

				test.id = id;

				test.style.position='absolute';

				test.style.visibility='hidden';

				test.style.border=test.style.padding=test.style.margin='0';

				test.style.left=test.style.top='-1000px';

				test.style.height=test.style.width='1in';

				document.body.appendChild(test);

			}

			

			var dpi = test.offsetHeight;

		}

		

		this.dpi = parseInt(dpi);

	}

	

	,isIgnoredElement: function(el) { return (this.ignoredElements.indexOf(el.nodeName)>-1); }

	,sanitizeHTML: function(html) { return html.replace(/<[^>]+>/g, ''); }

	

	,getFStyle: function(o, fstyle) { 

		var cStyle = this.getClassStyle(o);

		if(this.isFStyle(cStyle))

			fstyle = cStyle;



		if(this.isFStyle(fstyle)) {

			return fstyle;

		}else if(this.isFStyle(o.FLIRStyleObj)) {

			return o.FLIRStyleObj;

		}else {

			return this.defaultStyle;

		}

	}

	,setFStyle: function(o, FStyle) { o.FLIRStyleObj = FStyle; }

	,isFStyle: function(o) { return (typeof o != 'undefined' && o.toString() == 'FLIRStyle Object'); }



	,addClassStyle: function(classname, FStyle) {

		if(this.isFStyle(FStyle))

			this.classStyles[classname] = FStyle;

	}

	,getClassStyle: function(o) {

		var cn = o.className;

		if(this.classStyles.length == 0 || typeof cn == 'undefined' || cn=='') return false;

		

		var classes = cn.split(' ');

		for(var i in this.classStyles) {

			for(var ii=0; ii<classes.length; ii++) {

				if(classes[ii]==i) {

					return this.classStyles[i];

				}

			}

		}

		

		return false;

	}

};

























function FLIRStyle(options) {

	this.useBackgroundMethod 	= false;

	this.hoverStyle 				= (arguments[1] && FLIR.isFStyle(arguments[1])) ? arguments[1] : this;

		

	this.options = {

		 mode: '' // none (''), wrap,progressive or name of a plugin

		

		,cSize: null

		,cColor: null

		,cFont: null // font-family

		,cAlign: null

		,cTransform: null //text-transform

		,cLine: null //text-transform

		,cSpacing: null //letter-spacing (don't get too excited, read docs)

		,cOpacity: null 

		

		,realFontHeight: false

		,dpi: FLIR.dpi

	};

	



	for(var i in options) {

		if(i.indexOf('css')==0)

			i = 'c'+i.substr(3);



		switch(i) {

			case 'inheritStyle': break; // deprecated

			case 'useBackgroundMethod':

				this.useBackgroundMethod = options[i];

				break;

			default:

				this.options[i] = options[i];

		}

	}

}



// generate a url based on an object

FLIRStyle.prototype.generateURL = function(o) { // [, text]

	var enc_text = (arguments[1]?arguments[1]:o.innerHTML);



	var transform = this.options.cTransform;

	if(transform==null)

		transform = FLIR.getStyle(o, 'text-transform');

		

	switch(transform) {

		case 'capitalize':

			enc_text = enc_text.replace(/\w+/g, function(w){

								  return w.charAt(0).toUpperCase() + w.substr(1).toLowerCase();

							 });

			break;

		case 'lowercase':

			enc_text = enc_text.toLowerCase();

			break;

		case 'uppercase':

			enc_text = enc_text.toUpperCase().replace(/&[a-z0-9]+;/gi, function(m) { return m.toLowerCase(); }); // keep entities lowercase, numeric don't matter

			break;

	}

	

	enc_text = escape(enc_text.replace(/&/g, '{amp}').replace(/\+/g, '{plus}'));



	return FLIR.path+'generate.php?text='+enc_text+'&h='+o.offsetHeight+'&w='+o.offsetWidth+'&fstyle='+this.serialize(o);

};



// create custom url

FLIRStyle.prototype.buildURL = function(text, o) {

	var enc_text = escape(text.replace(/&/g, '{amp}').replace(/\+/g, '{plus}'));

	return FLIR.path+'generate.php?text='+enc_text+'&h=800&w=800&fstyle='+this.serialize(o);

};



FLIRStyle.prototype.serialize = function(o, bDontEncode) {

	var sdata='';

	

	var options = this.copyObject(this.options);

	if(this.options.cColor==null)

		this.options.cColor = this.getColor(o);

	if(this.options.cSize==null)

		this.options.cSize = this.getFontSize(o);

	if(this.options.cFont==null)

		this.options.cFont = this.getFont(o);

	if(this.options.cAlign==null)

		this.options.cAlign = FLIR.getStyle(o, 'text-align');

	if(this.options.cTransform==null)

		this.options.cTransform = FLIR.getStyle(o, 'text-transform');

	if(this.options.cSpacing==null)

		this.options.cSpacing = this.getSpacing(o);

	if(this.options.cLine==null)

		this.options.cLine= this.getLineHeight(o);

	if(this.options.cOpacity==null)

		this.options.cOpacity= FLIR.getStyle(o, 'opacity');



	for(var i in this.options) {

		if(this.options[i] == 'NaN' || typeof this.options[i] == 'undefined') { 

			this.options[i] = '';

		}

		sdata += ',"'+i+'":"'+this.options[i].toString().replace(/"/g, '"')+'"';

	}

	sdata = '{'+sdata.substr(1)+'}';



	this.options = options;



	return bDontEncode?sdata:escape(sdata);

};



FLIRStyle.prototype.getFont = function(o) { 

	var font = FLIR.getStyle(o, 'font-family');

	if(font.indexOf(',')) {

		font = font.split(',')[0];

	}



	return font.replace(/['"]/g, '').toLowerCase();

};



FLIRStyle.prototype.getColor = function(o) { 

	var color = FLIR.getStyle(o, 'color');

	if(color.substr(0, 1)=='#')

		color = color.substr(1);

	

	return color.replace(/['"]/g, '').toLowerCase();

};



FLIRStyle.prototype.getFontSize = function(o) {

	var raw = FLIR.getStyle(o, 'font-size');



	var pix;

	if(raw.indexOf('px') > -1) {

		pix = Math.round(parseFloat(raw));

	}else {

		if(raw.indexOf('pt') > -1) {

			var pts = parseFloat(raw);

			pix = pts/(72/this.dpi);

		}else if(raw.indexOf('em') > -1 || raw.indexOf('%') > -1) {

			pix = this.calcFontSize(o);

		}

	}



	return pix;

};



FLIRStyle.prototype.getSpacing = function(o) {

	var spacing = FLIR.getStyle(o, 'letter-spacing');

	if(spacing != 'normal') {

		if(spacing.indexOf('em') > -1) {

			var fontsize = this.getFontSize(o);

			return (parseFloat(spacing)*fontsize);

		}else if(spacing.indexOf('px') > -1) {

			return parseInt(spacing);

		}else if(spacing.indexOf('pt') > -1) {

			var pts = parseFloat(spacing);

			return pts/(72/this.dpi);			

		}

	}



	return '';	

};



FLIRStyle.prototype.getLineHeight = function(o) {

	var spacing = FLIR.getStyle(o, 'line-height');

	var fontsize = this.getFontSize(o);

	if(spacing.indexOf('em') > -1) {

		return (parseFloat(spacing)*fontsize)/fontsize;

	}else if(spacing.indexOf('px') > -1) {

		return parseInt(spacing)/fontsize;

	}else if(spacing.indexOf('pt') > -1) {

		var pts = parseFloat(spacing);

		return pts/(72/this.dpi)/fontsize;

	}else if(spacing.indexOf('%') > -1) {

		return 1.0;	

	}else {

		return parseFloat(spacing);

	}

};



FLIRStyle.prototype.calcFontSize = function(o) {

		var test = document.createElement('DIV');

		test.style.border = '0';

		test.style.padding = '0';

		test.style.position='absolute';

		test.style.visibility='hidden';

		test.style.left=test.style.top='-1000px';

		test.style.left=test.style.top='10px';

		test.style.lineHeight = '100%';

		test.innerHTML = 'Flir_Test';		

		o.appendChild(test);

		

		var size = test.offsetHeight;

		o.removeChild(test);



		return size;

};





FLIRStyle.prototype.copyObject = function(obj) { 

	var copy = {};

	for(var i in obj) {

		copy[i] = obj[i];	

	}

	

	return copy;

};



FLIRStyle.prototype.toString = function() { return 'FLIRStyle Object'; };













var DetectImageState = {

	 version: '1.0'

	,imagesDisabled: true

	,inserted_id: 'detectimagestate-test-img'

	,callback: function() { }

	,ie_detectionComplete: false

	,img: null

	,ie_Timeout: 100

	

	,init: function(testerimg, cb) {

		this.callback = cb;



		document.body.innerHTML += '<img id="'+this.inserted_id+'" src="'+testerimg+'?'+Math.random()+'" style="visibility:hidden; position:absolute;left:-1000px;" />';

		this.img = document.getElementById(this.inserted_id);

		

		if(window.opera || navigator.userAgent.toLowerCase().indexOf('opera')>-1) {

			var pre = this.img.complete;

			this.img.src = 'about:blank';

			this.imagesDisabled = (!pre && this.img.complete) ? false : true;

			DetectImageState.callback(this.imagesDisabled);

			return;

		}else if(typeof this.img.readyState != 'undefined') {

			this.img.src = this.img.src+'?'+Math.random();

			this.img.onabort = function() {

				DetectImageState.ie_detectionComplete = true;

				DetectImageState.imagesDisabled = false;

				DetectImageState.callback(DetectImageState.imagesDisabled);

			};

		

			setTimeout('if(!DetectImageState.ie_detectionComplete) DetectImageState.callback(DetectImageState.imagesDisabled);', this.ie_Timeout);

			return;

		}else {

			this.imagesDisabled = this.img.complete;

			DetectImageState.callback(this.imagesDisabled);

			return;

		}

	}

};