/**
* dd_belatedpng: adds ie6 support: png images for css background-image and html <img/>.
* author: drew diller
* email: drew.diller@gmail.com
* url: http://www.dillerdesign.com/experiment/dd_belatedpng/
* version: 0.0.8a
* licensed under the mit license: http://dillerdesign.com/experiment/dd_belatedpng/#license
*
* example usage:
* dd_belatedpng.fix('.png_bg'); // argument is a css selector
* dd_belatedpng.fixpng( somenode ); // argument is an htmldomelement
**/
var dd_belatedpng={ns:"dd_belatedpng",imgsize:{},delay:10,nodesfixed:0,createvmlnamespace:function(){if(document.namespaces&&!document.namespaces[this.ns]){document.namespaces.add(this.ns,"urn:schemas-microsoft-com:vml")}},createvmlstylesheet:function(){var b,a;b=document.createelement("style");b.setattribute("media","screen");document.documentelement.firstchild.insertbefore(b,document.documentelement.firstchild.firstchild);if(b.stylesheet){b=b.stylesheet;b.addrule(this.ns+"\\:*","{behavior:url(#default#vml)}");b.addrule(this.ns+"\\:shape","position:absolute;");b.addrule("img."+this.ns+"_sizefinder","behavior:none; border:none; position:absolute; z-index:-1; top:-10000px; visibility:hidden;");this.screenstylesheet=b;a=document.createelement("style");a.setattribute("media","print");document.documentelement.firstchild.insertbefore(a,document.documentelement.firstchild.firstchild);a=a.stylesheet;a.addrule(this.ns+"\\:*","{display: none !important;}");a.addrule("img."+this.ns+"_sizefinder","{display: none !important;}")}},readpropertychange:function(){var b,c,a;b=event.srcelement;if(!b.vmlinitiated){return}if(event.propertyname.search("background")!=-1||event.propertyname.search("border")!=-1){dd_belatedpng.applyvml(b)}if(event.propertyname=="style.display"){c=(b.currentstyle.display=="none")?"none":"block";for(a in b.vml){if(b.vml.hasownproperty(a)){b.vml[a].shape.style.display=c}}}if(event.propertyname.search("filter")!=-1){dd_belatedpng.vmlopacity(b)}},vmlopacity:function(b){if(b.currentstyle.filter.search("lpha")!=-1){var a=b.currentstyle.filter;a=parseint(a.substring(a.lastindexof("=")+1,a.lastindexof(")")),10)/100;b.vml.color.shape.style.filter=b.currentstyle.filter;b.vml.image.fill.opacity=a}},handlepseudohover:function(a){settimeout(function(){dd_belatedpng.applyvml(a)},1)},fix:function(a){if(this.screenstylesheet){var c,b;c=a.split(",");for(b=0;b<c.length;b++){this.screenstylesheet.addrule(c[b],"behavior:expression(dd_belatedpng.fixpng(this))")}}},applyvml:function(a){a.runtimestyle.csstext="";this.vmlfill(a);this.vmloffsets(a);this.vmlopacity(a);if(a.isimg){this.copyimageborders(a)}},attachhandlers:function(i){var d,c,g,e,b,f;d=this;c={resize:"vmloffsets",move:"vmloffsets"};if(i.nodename=="a"){e={mouseleave:"handlepseudohover",mouseenter:"handlepseudohover",focus:"handlepseudohover",blur:"handlepseudohover"};for(b in e){if(e.hasownproperty(b)){c[b]=e[b]}}}for(f in c){if(c.hasownproperty(f)){g=function(){d[c[f]](i)};i.attachevent("on"+f,g)}}i.attachevent("onpropertychange",this.readpropertychange)},givelayout:function(a){a.style.zoom=1;if(a.currentstyle.position=="static"){a.style.position="relative"}},copyimageborders:function(b){var c,a;c={borderstyle:true,borderwidth:true,bordercolor:true};for(a in c){if(c.hasownproperty(a)){b.vml.color.shape.style[a]=b.currentstyle[a]}}},vmlfill:function(e){if(!e.currentstyle){return}else{var d,f,g,b,a,c;d=e.currentstyle}for(b in e.vml){if(e.vml.hasownproperty(b)){e.vml[b].shape.style.zindex=d.zindex}}e.runtimestyle.backgroundcolor="";e.runtimestyle.backgroundimage="";f=true;if(d.backgroundimage!="none"||e.isimg){if(!e.isimg){e.vmlbg=d.backgroundimage;e.vmlbg=e.vmlbg.substr(5,e.vmlbg.lastindexof('")')-5)}else{e.vmlbg=e.src}g=this;if(!g.imgsize[e.vmlbg]){a=document.createelement("img");g.imgsize[e.vmlbg]=a;a.classname=g.ns+"_sizefinder";a.runtimestyle.csstext="behavior:none; position:absolute; left:-10000px; top:-10000px; border:none; margin:0; padding:0;";c=function(){this.width=this.offsetwidth;this.height=this.offsetheight;g.vmloffsets(e)};a.attachevent("onload",c);a.src=e.vmlbg;a.removeattribute("width");a.removeattribute("height");document.body.insertbefore(a,document.body.firstchild)}e.vml.image.fill.src=e.vmlbg;f=false}e.vml.image.fill.on=!f;e.vml.image.fill.color="none";e.vml.color.shape.style.backgroundcolor=d.backgroundcolor;e.runtimestyle.backgroundimage="none";e.runtimestyle.backgroundcolor="transparent"},vmloffsets:function(d){var h,n,a,e,g,m,f,l,j,i,k;h=d.currentstyle;n={w:d.clientwidth+1,h:d.clientheight+1,w:this.imgsize[d.vmlbg].width,h:this.imgsize[d.vmlbg].height,l:d.offsetleft,t:d.offsettop,blw:d.clientleft,btw:d.clienttop};a=(n.l+n.blw==1)?1:0;e=function(b,p,q,c,s,u){b.coordsize=c+","+s;b.coordorigin=u+","+u;b.path="m0,0l"+c+",0l"+c+","+s+"l0,"+s+" xe";b.style.width=c+"px";b.style.height=s+"px";b.style.left=p+"px";b.style.top=q+"px"};e(d.vml.color.shape,(n.l+(d.isimg?0:n.blw)),(n.t+(d.isimg?0:n.btw)),(n.w-1),(n.h-1),0);e(d.vml.image.shape,(n.l+n.blw),(n.t+n.btw),(n.w),(n.h),1);g={x:0,y:0};if(d.isimg){g.x=parseint(h.paddingleft,10)+1;g.y=parseint(h.paddingtop,10)+1}else{for(j in g){if(g.hasownproperty(j)){this.figurepercentage(g,n,j,h["backgroundposition"+j])}}}d.vml.image.fill.position=(g.x/n.w)+","+(g.y/n.h);m=h.backgroundrepeat;f={t:1,r:n.w+a,b:n.h,l:1+a};l={x:{b1:"l",b2:"r",d:"w"},y:{b1:"t",b2:"b",d:"h"}};if(m!="repeat"||d.isimg){i={t:(g.y),r:(g.x+n.w),b:(g.y+n.h),l:(g.x)};if(m.search("repeat-")!=-1){k=m.split("repeat-")[1].touppercase();i[l[k].b1]=1;i[l[k].b2]=n[l[k].d]}if(i.b>n.h){i.b=n.h}d.vml.image.shape.style.clip="rect("+i.t+"px "+(i.r+a)+"px "+i.b+"px "+(i.l+a)+"px)"}else{d.vml.image.shape.style.clip="rect("+f.t+"px "+f.r+"px "+f.b+"px "+f.l+"px)"}},figurepercentage:function(d,c,f,a){var b,e;e=true;b=(f=="x");switch(a){case"left":case"top":d[f]=0;break;case"center":d[f]=0.5;break;case"right":case"bottom":d[f]=1;break;default:if(a.search("%")!=-1){d[f]=parseint(a,10)/100}else{e=false}}d[f]=math.ceil(e?((c[b?"w":"h"]*d[f])-(c[b?"w":"h"]*d[f])):parseint(a,10));if(d[f]%2===0){d[f]++}return d[f]},fixpng:function(c){c.style.behavior="none";var g,b,f,a,d;if(c.nodename=="body"||c.nodename=="td"||c.nodename=="tr"){return}c.isimg=false;if(c.nodename=="img"){if(c.src.tolowercase().search(/\.png$/)!=-1){c.isimg=true;c.style.visibility="hidden"}else{return}}else{if(c.currentstyle.backgroundimage.tolowercase().search(".png")==-1){return}}g=dd_belatedpng;c.vml={color:{},image:{}};b={shape:{},fill:{}};for(a in c.vml){if(c.vml.hasownproperty(a)){for(d in b){if(b.hasownproperty(d)){f=g.ns+":"+d;c.vml[a][d]=document.createelement(f)}}c.vml[a].shape.stroked=false;c.vml[a].shape.appendchild(c.vml[a].fill);c.parentnode.insertbefore(c.vml[a].shape,c)}}c.vml.image.shape.fillcolor="none";c.vml.image.fill.type="tile";c.vml.color.fill.on=false;g.attachhandlers(c);g.givelayout(c);g.givelayout(c.offsetparent);c.vmlinitiated=true;g.applyvml(c)}};try{document.execcommand("backgroundimagecache",false,true)}catch(r){}dd_belatedpng.createvmlnamespace();dd_belatedpng.createvmlstylesheet();