var oPopup = window.createPopup(); 
var popTop=50; 
function popmsg(msgstr){ 
var winstr=msgstr; 
oPopup.document.body.innerHTML = winstr; 
popshow(); 
} 
function popshow(){ 
window.status=popTop; 
if(popTop>1720){ 
clearTimeout(mytime); 
oPopup.hide(); 
return; 
}else if(popTop>1520&&popTop<1720){ 
oPopup.show(screen.width-250,screen.height,241,1680-popTop); 
}else if(popTop<140){ 
oPopup.show(screen.width-250,screen.height,241,popTop); 
}else if(popTop<180){ 
oPopup.show(screen.width-250,screen.height-popTop,241,140); 
} 
popTop+=10; 
var mytime=setTimeout("popshow();",60); 
}