<script>
// C.2004 
var nW,nH,oH,oW;
function zoomToggle(iWideSmall,iHighSmall,iWideLarge,iHighLarge,whichImage){
oW=whichImage.style.width;oH=whichImage.style.height;
if((oW==iWideLarge)||(oH==iHighLarge)){
nW=iWideSmall;nH=iHighSmall;}else{
nW=iWideLarge;nH=iHighLarge;}
whichImage.style.width=nW;whichImage.style.height=nH;
}
</script>
<img border="0" src="http://s.azbuz.com//uploads/avatars/13/136893/45000000014829621_s.jpg" width="100" height="100" onclick="zoomToggle('100px','100px','450px','450px',this);">