function open_pic(url, target, width, height) {
/*
left = (window.screen.width / 2) - (width / 2);
topi = (window.screen.height / 2) - (height / 2);
options = 'margin=0,scrollbars=0,toolbar=0,resizable=yes,top=' + topi + ',left=' + left + ',menubar=0,width=' + width + ',height=' + height;
*/
options = 'margin=0,scrollbars=0,toolbar=0,resizable=yes,menubar=0,width=' + width + ',height=' + height;
win = window.open(url, target, options);
win.focus();
return ('object' == typeof(win)) ? true : false;
}