///////////////////////////////
	//map location code
	///////////////////////////////

	var idRoom = "";

	function roomOn(idRoom) {

		if (document.getElementById && document.createTextNode)
		{
			//check for an empty string
			if (!idRoom)
    		idRoom = "bookstore";
			
			document.getElementById(idRoom).className="room-on";
			
		}
	}

	function roomOff(idRoom) {

		if (document.getElementById && document.createTextNode)
		{
			//check for an empty string
			if (!idRoom)
    		idRoom = "bookstore";
			
			document.getElementById(idRoom).className="room-off";
			
		}
	}

	function classOn(idRoom) {

		if (document.getElementById && document.createTextNode)
		{
			//check for an empty string
			if (!idRoom)
    		idRoom = "bookstore";
			
			document.getElementById(idRoom).className="class-on";
			
		}
	}
	
	function compOn(idRoom) {

		if (document.getElementById && document.createTextNode)
		{
			//check for an empty string
			if (!idRoom)
    		idRoom = "bookstore";
			
			document.getElementById(idRoom).className="comp-on";
			
		}
	}	
	
	function facOn(idRoom) {

		if (document.getElementById && document.createTextNode)
		{
			//check for an empty string
			if (!idRoom)
    		idRoom = "bookstore";
			
			document.getElementById(idRoom).className="faculty-on";
			
		}
	}