点击图片放大【转】

<img onclick=chgsize(this); src='http://www.webdm.cn/images/wall1.jpg' />

<script>
function chgsize(e){
if(e.getAttribute('big')&&e.getAttribute('big')=='1'){
e.setAttribute('big','0');
e.setAttribute('width','150');
}else{
e.setAttribute('big','1');
e.setAttribute('width','500');
}
}
</script>