function ShowDiv(divID , addX , addY) 
        {         
                   var oPopup = document.getElementById(divID); 
                   if (oPopup==null) {return} 
             x = event.clientX + document.body.scrollLeft - addX ; // get the mouse left position 
                 y = event.clientY + document.body.scrollTop + addY ; // get the mouse top position 

                oPopup.style.display="block"; // display the pop-up 
                oPopup.style.left = x ; // set the pop-up's left 
                oPopup.style.top = y; // set the pop-up's top 
        
        } 
// this function hides the pop-up when user moves the mouse out of the link 
        function HideDiv(divID) 
        {   
            var oPopup = document.getElementById(divID); 
            if (oPopup==null) {return} 
                oPopup.style.display="none"; // hide the pop-up 
        }