var DHTML = (document.getElementById || document.all || document.layers);
var elements = new Array();
elements[0] = 0;
elements[1] = 1;
elements[2] = 2;



// Get object by its name
function getObj(name)
{
	if (document.getElementById) {
		this.obj = document.getElementById(name);
		this.style = document.getElementById(name).style;
	} else if (document.all) {
		this.obj = document.all[name];
		this.style = document.all[name].style;
	} else if (document.layers) {
	   	this.obj = document.layers[name];
   		this.style = document.layers[name];
	}
}

function onOver(elem,number)
{
	//alert(elem.name);
	elem.bgColor = "#CCFFCC";
	if (!DHTML) return;
	//alert(number);
	if (elements[number] > 0) {
		for ( i=1; i < elements.length; i++)
		{
			if (elements[i] == number)
			{
				showLayer(number);
			}
			else {
				hiddenLayer(i);
			}
		}
	}
}

function showLayer(number) {
	var obj = new getObj('submenu_' + number);
	obj.style.visibility = 'visible';
}

function hiddenLayer(number) {
	var obj = new getObj('submenu_' + number);
	obj.style.visibility = 'hidden';
}

function onOut(elem)
{
	elem.bgColor = "#FFFFCC";
}