var menu = 
{
	menu1index	: 0,
	ShowMenu	: function( index , obj)
	{
		
		document.all("tr_" + this.menu1index ).style.display = "none";
		this.menu1index = index;
		if( obj == null ) var obj = document.all("tr_" + index );
		document.all("tr_" + index ).style.display = "inline";
		var om = document.all("tr_" + index );
		om.style.marginLeft   = obj.offsetLeft;
	}
}