function ChangePicture(what,where)
{
	temp = document.getElementById(where);
	if (temp) { temp.src = what; }
}

function newWindow(url, width, height, winname) {
  var screen_width  = screen.width;
  var screen_height = screen.height;
  var left = screen_width/2-width/2;
  var top  = screen_height/2-height/2;
	if(screen_width > width && screen_height > height) var scrollbars = 'scrollbars=no';
  else var scrollbars = 'scrollbars=yes';
  var Win = window.open('large.php?img=' + url, winname, 'width=' + width + ', height=' + height + ', resizable=no, ' + scrollbars + ', menubar=no' + ', top=' + top + ', left=' + left);
}