var prev="null";

window.onload=function(){

if(document.getElementsByTagName && document.getElementById){

	document.getElementById("menu").className="jsenable";

		BuildList();
	}
}

function BuildList(){

var hs=document.getElementById("menu").getElementsByTagName("h3");

for(var i=0;i<hs.length;i++){

	hs[i].onclick=function(){

		for(var i=0;i<hs.length;i++){
			hs[i].parentNode.className="hide"
		}

	if(this.parentNode.className!="show"){

		this.parentNode.className="show";

			if(prev && prev!=this.parentNode) prev.className="hide";

				prev=this.parentNode;
			
			}
		
			else this.parentNode.className="hide";

			}

	}

}