function ImgView(imgname,left,top,width,height)
{
  window.open("imageview.php?imgname="+imgname, "RodeoImgView","left="+left+",top="+top+",height="+height+",width="+width+",toolbar=0,location=0,directoties=0,status=0,menubar=0,scrollbars=0,resizable=0");
}