function displayGems() {
      var gems = window.open('/gemstones.html', 'gems', 'personalbar=no,toolbar=no,status=no,scrollbars=no,location=no,resizable=no,menubar=no,width=420,height=232');
      if(window.focus) {
         gems.focus();
      }
   }

	function displayFonts(font_id) {
		var fonts = window.open('/fonts.html?font_id=' + font_id, 'fonts', 'personalbar=no,toolbar=no,status=no,scrollbars=no,location=no,resizable=no,menubar=no,width=375,height=635');
		if(window.focus) {
			fonts.focus();
		}
	}

   function displayTellFriend() {
      var taf = window.open('http://bridal-gifts.cathysexpress.com/tellafriend.html', 'taf', 'personalbar=no,toolbar=no,status=no,scrollbars=yes,location=no,resizable=no,menubar=no,width=500,height=580');

      if(window.focus) {
         taf.focus();
      }
   }

	function updateMaxLength(prod_id, item) {
		var style     = eval("document.cart.elements['styles[" + prod_id + "][" + item + "]']");
		var engraving = eval("document.cart.elements['engraving[" + prod_id + "][" + item + "]']");

		switch(style.value) {
			case 'Initials':
			case 'Monogram':
				engraving.readOnly  = false;
				engraving.value     = engraving.value.substring(0,3);
				engraving.maxLength = 3;
				break;
			case 'No Engraving':
				engraving.value    = "";
				engraving.readOnly = true;
				break;
			case 'Single Initial':
				engraving.readOnly  = false;
				engraving.value     = engraving.value.substring(0,1);
				engraving.maxLength = 1;
				break;
			case 'First Name':
				engraving.readOnly  = false;
				engraving.value     = engraving.value.substring(0,15);
				engraving.maxLength = 15;
				break;
			default:
				engraving.readOnly  = false;
				engraving.maxLength = 60;
				break;
		}

		return;
	}