var menu = new Object();
menu.time = null;
menu.table = new Array();

menu.onmouseover = function(number)
{
	if(this.time != null )
		clearTimeout(this.time);
	if(document.getElementById('menu_' + number).style.display == 'none')
	{
		this.table[this.table.length]=number;
		document.getElementById('menu_' + number).style.display = '';
	}
}

menu.onmouseout = function(number)
{
	if(this.time != null)
		clearTimeout(this.time);
	this.time = setTimeout('menu.hidden2(' + number + ');',100);
}

menu.hidden = function()
{
	for(var count = 0; count < this.table.length;count ++)
	{
		document.getElementById('menu_' + this.table[count]).style.display = 'none';
	}
	this.table = new Array();
}

menu.hidden2 = function(number)
{
	document.getElementById('menu_' + number).style.display = 'none';
}