Resize Any Images Over 150px Wide Without Mess Up Layout

Jan 12, 2010

I'm coding my new website, and to save bandwidth, i'm letting users link to their own avatars, so I want to resize any images over 150px wide so it doesn't mess up my layout - simple, right? Well, you'd think so, but I don't know any javascript, so i've scrapped this together with what little I know:

var obj=document.getElementsByTagName("img");
for(var i=0;i<obj.length;i++){
if(obj[i].className == "avatar") {
if(getElementWidth(obj[i]) > 150) {
obj[i].style.width = 150;
[Code]...

I need it to check all elements (well, images - but only images will be using it) for a width of over 150px, and, if it is - change it to 150px

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