function loadPopup(vadiv){   
        //loads popup only if it is disabled   
        if(popupStatus==0){
            //alert(vadiv.find('span').width());  
//            vadiv.children('.lblDescription').width(600); 
//            vadiv.width(600); 
            vadiv.fadeIn("slow");
            popupStatus = 1;
            var vWidth = vadiv.children('span').width();
            if (vWidth == 0)
                vWidth = vadiv.parent().find('div').width();
            vadiv.css({
                "width": vWidth
            });  
        }   
    }// end function.
    
    function disablePopup(vadiv){   
    //disables popup only if it is enabled   
        if(popupStatus==1){   
            vadiv.fadeOut("slow");   
            popupStatus = 0;   
        }   
    }// end function.     

    //centering popup   
    function centerPopup(vadiv){   
        //request data for centering   
        var windowWidth = document.documentElement.clientWidth;   
        var windowHeight = document.documentElement.clientHeight;   
        var popupHeight = vadiv.height();   
        var popupWidth = vadiv.width();   
        //centering   
        vadiv.css({   
            "position": "absolute",   
            "top": windowHeight/2-popupHeight/2,   
            "left": windowWidth/2-popupWidth/2   
            });   
    }