function showPicture(title,file,width,height) {
var x,y;
x=getMidX(width);
y=getMidY(height);
var wnd=window.open("","",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,left='+x+',top='+y+',width='+width+',height='+height+"'");
wnd.document.writeln(''+title+'
');
wnd.document.close();
}