终于解决了，看了一下午的js资料发现原来解决问题只需要仔细的想想 然后修改一点点就好了
function autoSetImgSize(elemId, percent) {
if (navigator.userAgent.toLowerCase().indexOf(”ie”) > -1){
return autoSetImgSize_IE(elemId, 600);
}
var doc = document;
if( elemId != null && elemId !=””) {
try {
doc = doc.getElementById(elemId);
}catch (e1) {
doc = document;
}
}
if( percent == null || percent ==”” )
percent = “90%”;
var items = doc.getElementsByTagName(”img”);
for( var k = 0; k w1){
items[k].style.width = w1;
}else{
items[k].height = items[k].height * (w2/w1);
}
}
}
function autoSetImgSize_IE(elemId, max_width) {
var doc [...]
