function showDD(loc)
{	//	getMenuPositions(loc);
	HideDDAll();
	document.getElementById(loc).style.visibility = "visible";
};

function HideDD(loc){	
	document.getElementById(loc).style.visibility = "hidden";	
};

function HideItem(tag){	
	document.getElementById(tag).style.visibility = "hidden";	
};

function HideDDAll(){	
	document.getElementById("home").style.visibility = "hidden";
	document.getElementById("menu0").style.visibility = "hidden";	
	document.getElementById("menu1").style.visibility = "hidden";		
	document.getElementById("menu2").style.visibility = "hidden";
	document.getElementById("menu3").style.visibility = "hidden";
	document.getElementById("menu4").style.visibility = "hidden";
	document.getElementById("menu5").style.visibility = "hidden";
	document.getElementById("menu6").style.visibility = "hidden";
	document.getElementById("menu7").style.visibility = "hidden";
};