var i_offset = 1;

function make_menu ()
{
	var a_ul = document.getElementById("menu_hover").getElementsByTagName("ul");
	for ( var i = 0; i < a_ul.length; i++ )
	{
		a_ul[i].style.top = ( a_ul[i].parentNode.offsetHeight - i_offset ) + "px";
		a_ul[i].parentNode.onmousemove = function()
		{
			this.getElementsByTagName("ul")[0].style.visibility="visible";

		}
		a_ul[i].parentNode.onmouseout = function()
		{
			this.getElementsByTagName("ul")[0].style.visibility="hidden";
		}
	}
}
if ( window.addEventListener ) {
	window.addEventListener ( "load", make_menu, false );
}
else if ( window.attachEvent ) {
	window.attachEvent ( "onload", make_menu );
}