function showmenu(obj1, state,obj2) {
    var btn = obj1;
    var obj = document.getElementById(obj2);
    var h = btn.offsetHeight;
    var w = btn.offsetWidth;
    var x = btn.offsetLeft;
    var y = btn.offsetTop;

    obj.onmouseover = function() {
        showmenu(obj1, 'show',obj2);
    }
    obj.onmouseout = function() {
        showmenu(obj1, 'hide',obj2);
    }

    while (btn = btn.offsetParent) { y += btn.offsetTop; x += btn.offsetLeft; }
	//alert(x);

    var hh = obj.offsetHeight;
    var ww = obj.offsetWidth;
    var xx = obj.offsetLeft; //style.left;
    var yy = obj.offsetTop; //style.top;
	obj.style.left = x - 60;
	//obj.style.top = y + btn.offsetHeight + "px";

	//alert(btn.offsetWidth);

    if (state == "hide") {
        hiddenmenu(obj);
    } else {
        obj.style.visibility = "visible";
    }
}
function hiddenmenu(psObjId) {
    psObjId.style.visibility = "hidden";
}


function swaplink(linklayer)
	{
		for (var i=1;i<6;i++)
		{
	
			document.getElementById("linklayer" + i).style.display = "none";

		}
		document.getElementById(linklayer).style.display = '';
	}