function visible_pic(picsrc)
{
         X = event.x + document.body.scrollLeft + 20;
         Y = event.y + document.body.scrollTop - 260;
         document.all.sumpic.style.left = X;
         document.all.sumpic.style.top  = Y;
         document.all.sumpic_pic.width  = "400";
         document.all.sumpic_pic.src  = picsrc;
         document.all.sumpic.style.visibility = "visible";
         n = 0;
         if(navigator.appName.indexOf("Microsoft") > -1){
             fadein();
         }
         else{
         }
}
function fadein()
{
        if (n > 100) {
           document.all.sumpic_pic.filters['alpha'].opacity = 100;
           return;
        }
        else{
           n += 5;
           document.all.sumpic_pic.filters['alpha'].opacity = n;
           setTimeout("fadein()",30);
        }
}

function hidden_pic()
{
        if(navigator.appName.indexOf("Microsoft") > -1){ 
            document.all.sumpic_pic.filters['alpha'].opacity = 0;
        }
        else{}
        document.all.sumpic_pic.src  = "img/loading.gif";
        document.all.sumpic.style.visibility = "hidden";
        n = 0;
        return;
}