function imgshow(npage,pagesrc,h,w){

features="width="+w+",height="+h+",toolbar=no,menubar=no,location=no,directories=no,scrollbars=no,resizable=no";
promoimg=window.open("./img.php?np="+npage+"&iv="+pagesrc+"&w="+w+"&h="+h,npage,features);
promoimg.focus();

}