// JavaScript Document
function collapse(obj, div){
	with(document.getElementById(div)){
		if (style.display == 'none'){
			style.display='block';
			obj.getElementsByTagName("IMG")[0].src="images/arrow_dn.gif";
		}else{
			style.display='none';
			obj.getElementsByTagName("IMG")[0].src="images/arrow_up.gif";
		}
	}	
}