var cX = 0; var cY = 0; var rX = 0; var rY = 0;

function UpdateCursorPosition(e)
{ 
    cX = e.pageX; 
    cY = e.pageY;
}

function UpdateCursorPositionDocAll(e)
{ 
    cX = event.clientX; 
    cY = event.clientY;
}

if(document.all) 
{ 
    document.onmousemove = UpdateCursorPositionDocAll; 
}
else 
{ 
    document.onmousemove = UpdateCursorPosition; 
}

function AssignPosition(d) 
{
    if(self.pageYOffset) 
    {
	    rX = self.pageXOffset;
    	rY = self.pageYOffset;
	}
    else if(document.documentElement && document.documentElement.scrollTop) 
    {
	    rX = document.documentElement.scrollLeft;
    	rY = document.documentElement.scrollTop;
	}
    else if(document.body) 
    {
	    rX = document.body.scrollLeft;
    	rY = document.body.scrollTop;
	}
	
    if(document.all) 
    {
       // alert(cX); 
       // alert(cY);
	    cX += rX; 
    	cY += rY;
	}
	
    //d.style.left = (cX+10) + "px";
    d.style.left = (cX-400) + "px"; 
    d.style.top = (cY-150) + "px";
   
    //alert(d.style.top);  
    //alert(document.documentElement.scrollTop); 
}

function HideContent(d) 
{
    if(d.length < 1) { return; }
    document.getElementById(d).style.display = "none";
}

function ShowContent(d) 
{
    if(d.length < 1) { return; }
    var dd = document.getElementById(d);
    AssignPosition(dd);
    dd.style.display = "block";
}

function ReverseContentDisplay(d) 
{
    if(d.length < 1) { return; }
    var dd = document.getElementById(d);
    AssignPosition(dd);
    if(dd.style.display == "none") { dd.style.display = "block"; }
    else { dd.style.display = "none"; }
}