var menuitems = new Array("menu0","menu1","menu2","menu3","menu4");
var keyvalue;

menuToggle = function(_key)
{
	if(_key == keyvalue && keyvalue != null)
	{
		document.getElementById(_key).style.display = "none";
		keyvalue = null;
		return;
	}	

	for(var i = 0; i < menuitems.length; i ++)
	{
		if(menuitems[i] == _key)
		{
			document.getElementById(menuitems[i]).style.display = "inline";
			keyvalue = _key;
		}
		else
		{
			document.getElementById(menuitems[i]).style.display = "none";
		}		
	}
}

markToggle = function()
{
	var jsm = location.search;
	
	var str1 = jsm.search(/jsm_/);
	var str2 = jsm.search(/_jsm/);
	
	if(str1 < 0 && str2 < 0)
	{
		return;	
	}

	jsm = jsm.substring(str1 + 4, str2);
	
	menuToggle(jsm);
}