ns=window.navigator.appName == "Netscape"
ie=window.navigator.appName == "Microsoft Internet Explorer"

function ExpCollapse(x) {
	var showBox;
	if(ns) {
		showbox= document.layers[x]
		if (showBox.style.visibility != "show") {
			showBox.visibility = "hidden" 
			}
		else	{
			showBox.visibility = "show"
			}
	     }
	  
	if(ie) {
	   showBox = document.all.box[x];
		if (showBox.style.display != "none") {
			showBox.style.display = "none"
			}
		else	{
	    	showBox.style.display = "block"
	    	}
		}
	}