function SwitchMenu(obj){
	if(document.getElementById){
	var el = document.getElementById(obj);
	var ar = document.getElementById("cont").getElementsByTagName("DIV");
		if(el.style.display == "none"){
			for (var i=0; i<ar.length; i++){
				ar[i].style.display = "none";
			}
			el.style.display = "block";
		}else{
			el.style.display = "none";
		}
	}
}
function ChangeClass(menu, newClass) { 
	 if (document.getElementById) { 
	 	document.getElementById(menu).className = newClass;
	 } 
} 
document.onselectstart = new Function("return true");



function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		holding_table_01_over = newImage("images/holding_table_01-over.jpg");
		holding_table_02_over = newImage("images/holding_table_02-over.jpg");
		holding_table_03_over = newImage("images/holding_table_03-over.jpg");
		holding_table_04_over = newImage("images/holding_table_04-over.jpg");
		holding_table_05_over = newImage("images/holding_table_05-over.jpg");
		holding_table_06_over = newImage("images/holding_table_06-over.jpg");
		holding_table_08_over = newImage("images/holding_table_08-over.jpg");
		holding_table_12_holding_table_08_over = newImage("images/holding_table_12-holding_ta.gif");
		preloadFlag = true;
	}
}