$(document).ready(function(){
$(".button").click(function() {
var color = "li-"+this.id;
var color2="bt-"+this.id;
var colorproperty=document.getElementById(color).className;
//var test=document.getElementById(color2).src;
//alert (test);
if (colorproperty=='collapsed') {
document.getElementById(color).className="expanded";
document.getElementById(color2).src ="/acquia/sites/all/themes/superclean/images/expanded.gif";
}
if (colorproperty=='expanded') {
document.getElementById(color).className="collapsed";
document.getElementById(color2).src="/acquia/sites/all/themes/superclean/images/collapsed.gif";
}
})
})