var agt=navigator.userAgent.toLowerCase();
var is_major = parseInt(navigator.appVersion);
var is_minor = parseFloat(navigator.appVersion);
var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
			&& (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
			&& (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
var is_nav4 = (is_nav && (is_major == 4));
var is_nav4up = (is_nav && (is_major >= 4));
var is_nav6up = (is_nav && (is_major >= 5));

var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
var is_ie3    = (is_ie && (is_major < 4));
var is_ie4    = (is_ie && (is_major == 4) && (agt.indexOf("msie 4")!=-1) );
var is_ie4up  = (is_ie && (is_major >= 4));
var is_ie5up  = (is_ie && !is_ie3 && !is_ie4);

function getWindowWidth(){
	if (is_ie4){
		WindowWidth=document.body.clientWidth;
		//alert(WindowWidth);
	}
	if (is_nav4){
		WindowWidth=window.innerWidth;
		//WindowWidth-=45;
	}
	if (is_ie5up || is_nav6up){
		WindowWidth=document.body.clientWidth;
		//alert(WindowWidth);
		//WindowWidth-=30;
	}
	return WindowWidth;
}

function showMenu(anc_name, menu)
{				
		//alert("in:"+temp_menu);	
		var objMenu			= document.getElementById(menu);

		var cord	= getAnchorPosition(anc_name);
		//alert("X :"+cord.x +" Y : "+cord.y); 

		var ww  = getWindowWidth();

		if (is_ie5up && ww > 1024)
		{			
			var top			= cord.y-3;
			var left		=  cord.x-10 ;
			//alert ("y:"+top+" x:"+left);
		}
		else
		{
			var top			= cord.y-4;
			var left			=  cord.x-10 ;
			//alert ("y:"+top+" x:"+left);
		}

		

		top = eval ("'"+top+"px'");
		left = eval ("'"+left+"px'");
		//alert ("y:"+y+" x:"+x);
		objMenu.style.top = top;
		objMenu.style.left = left;
		objMenu.style.display = "";
	
}

function hideMenu(menu)
{
	document.getElementById(menu).style.display = "none";	
}