function showPic(imgName,imgw,imgh) { w = window.open('','Demo','toolbar=no,location=no,directories=no,status=no,scrollbars=no,resizable=yes,copyhistory=no,width='+imgw+',height='+imgh+',left='+(screen.width-imgw)/2+',top='+(screen.height-imgh-80)/2); w.document.write( "Image" ); w.document.write( "