function open_imgwin(sku)
{
      var img_win = window.open("/picview.asp?IMG="+sku, "win1", "toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=1,width=525,height=525");
      img_win.focus();
}
function open_urlwin(url)
{
      var urlwin = window.open(url, "win1", "toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=1,width=525,height=525");
      urlwin.focus();
}
function open_pu_hlp()
{
      var hlpwin = window.open("/pu-hlp/", "help", "toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=1,width=800,height=450");
      hlpwin.focus();
}
function open_pu_hlp_trms()
{
      var hlpwin = window.open("/pu-hlp/terms_and_conditions", "help", "toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=1,width=800,height=450");
      hlpwin.focus();
}