// JavaScript Document
function ShowContent(obj){
	if(document.getElementById){
		var el = document.getElementById(obj);
		var ar = document.getElementById("selectable").getElementsByTagName("span");

		if (el.style.display == "block")
			el.style.display = "none";
		else
		{	for (var i=0; i<ar.length; i++)
				ar[i].style.display = "none";
			el.style.display = "block";
		}
	}
}