// IE6的PNG透明度修正
var supersleight=function(){
var root = false;
var applyPositioning=true;
var shim='content/img/x.gif';
var shim_pattern=/x\.gif$/i;
var fnLoadPngs=function(){
if(root){
root=document.getElementById(root);
}else{
root=document;
}
for(var i=root.all.length-1,obj=null;(obj=root.all[i]);i--){
if(obj.currentStyle.backgroundImage.match(/\.png/i)!==null){
bg_fnFixPng(obj);
}
if(obj.tagName=='IMG'&&obj.src.match(/\.png$/i)!==null){
el_fnFixPng(obj);
}
if(applyPositioning&&(obj.tagName=='A'||obj.tagName=='INPUT')&&obj.style.position===''){
obj.style.position='relative';
}
}
};
var bg_fnFixPng=function(obj){
var mode='scale';
var bg=obj.currentStyle.backgroundImage;
var src=bg.substring(5,bg.length-2);
if(obj.currentStyle.backgroundRepeat=='no-repeat'){
mode='crop';
}
obj.style.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+src+"', sizingMethod='"+mode+"')";
obj.style.backgroundImage='url('+shim+')';
};
var el_fnFixPng=function(img){
var src=img.src;
img.style.width=img.width+"px";
img.style.height=img.height+"px";
img.style.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+src+"', sizingMethod='scale')";
img.src=shim;
};
var addLoadEvent=function(func){
var oldonload=window.onload;
if(typeof window.onload!='function'){
window.onload=func;
}else{
window.onload=function(){
if(oldonload){
oldonload();
}
func();
};
}
};
return{
init:function(){
addLoadEvent(fnLoadPngs);
},
limitTo:function(el){
root=el;
},
run:function(){
fnLoadPngs();
}
};
}();
supersleight.init();