function showImage(img_path, img_alt, img_w, img_h){
var winn = window.open('','show', 'resizable=no, width=' + img_w + ', height=' + img_h + ', screenX=200, screenY=200, left=200, top=200');
winn.document.open();
winn.document.writeln('');
winn.document.writeln('');
winn.document.writeln(''+img_alt+'');
winn.document.writeln('');
winn.document.writeln('');
winn.document.writeln('');
winn.document.writeln('
');
winn.document.writeln('');
winn.document.writeln('');
winn.document.close();
}