changing e-props? Options

[Got Xanga?]

hey! can someone help me. I did the code to change e-props and I was wondering does the new image have to be a certain size because when i put my image in the put image here part it didnt work. someone please help! thank you. xoxo

[Got Xanga?]

heres the script i used.. is there anything wrong with it?

]<!-- begin code provided by createblog.com -->
<script language=javascript>
var oldprop = new Array('http://www.xanga.com/Images/eProp.gif');
var newprop = new
Array(http://img.photobucket.com/albums/v290/sexiekatie69/convo.jpg;);
for (var i = 0; i < document.images.length; i++) {
for (var s = 0; s < oldprop.length; s++){
if (document.images[i].src == oldprop[s]){
neweprop = document.createElement('img');
neweprop.src = newprop[s];
document.images[i].parentNode.replaceChild(neweprop, document.images[i]);
break;
}
}
}
</script>
<!-- end code provided by createblog.com -->