function foto(url,width,height,closeOnClick,windowName,windowTitle,t){
if(!url)return
function readSize(){if(t.complete)showPopup(t.width,t.height);else setTimeout(readSize,1e2)}
function showPopup(w,h){with(window.open('',windowName||'','width='+(width||w)+',height='+(height||h)).document){open();write(''+(windowTitle||'')+'
');close()}}
if(!width||!height)t=new Image(),t.src=url,readSize()
else showPopup(width,height)
}