// JavaScript Document
function custring(mwind)
{
msize ='';
if (typeof document.addcart.SizeSelect != "undefined") {
   var v = document.addcart.SizeSelect.selectedIndex;
   var msize = document.addcart.SizeSelect.options[v].value;
}
if (msize == "custom") {
	window.open('http://www.birkatelyon.com/ringsize.asp?style='+mwind,'RingSize','width=280,height=400,top=100,left=100,scrollbars=1');
} else {
	window.open('http://www.birkatelyon.com/product.asp?style='+mwind+'&size='+msize,'_top');
}
}
function custring1(mwind)
{
msize ='';
if (typeof document.addcart.SizeSelect != "undefined") {
   var v = document.addcart.SizeSelect.selectedIndex;
   var msize = document.addcart.SizeSelect.options[v].value;
}
if (msize == "custom") {
	window.open('http://www.birkatelyon.com/ringsize1.asp?style='+mwind,'RingSize','width=280,height=400,top=100,left=100,scrollbars=1');
} else {
	window.open('http://www.birkatelyon.com/product_video.asp?style='+mwind+'&size='+msize,'_top');
}
}
function updpic()
{
if (typeof document.addcart.OptSelect != "undefined") {
   var o = document.addcart.OptSelect.selectedIndex;
   var mopt = document.addcart.OptSelect.options[o].value;
   switch (mopt){
   	case 'Large':
   		document['earback'].src="/images/earback-lg.jpg";
   		break;
   	case 'Special':
   		document['earback'].src="/images/earback-sp.jpg";
   		break;
   	case 'None':
   		document['earback'].src="/images/noimage.gif";
   		break;
   	}
}
}
function updpara()
{
mqty ='';
msize ='';
mmetal ='';
mchain ='';
mlen ='';
mopt ='';
var cstyle=document.addcart.Styleval.value;
if (typeof document.addcart.QtySelect != "undefined") {
   var w = document.addcart.QtySelect.selectedIndex;
   var mqty = document.addcart.QtySelect.options[w].value;
}
if (typeof document.addcart.SizeSelect != "undefined") {
   var v = document.addcart.SizeSelect.selectedIndex;
   var msize = document.addcart.SizeSelect.options[v].value;
}
if (typeof document.addcart.MetalSelect != "undefined") {
  if (document.addcart.MetalSelect.value!="TwoTone") {
   var x = document.addcart.MetalSelect.selectedIndex;
   var mmetal = document.addcart.MetalSelect.options[x].value;
  }
}
if (typeof document.addcart.ChainSelect != "undefined") {
   var y = document.addcart.ChainSelect.selectedIndex;
   var mchain = document.addcart.ChainSelect.options[y].value;
}
if (typeof document.addcart.lengthSelect != "undefined") {
   var z = document.addcart.lengthSelect.selectedIndex;
   var mlen = document.addcart.lengthSelect.options[z].value;
}
if (typeof document.addcart.OptSelect != "undefined") {
   var o = document.addcart.OptSelect.selectedIndex;
   var mopt = document.addcart.OptSelect.options[o].value;
}
if (typeof document.addcart.PearlSelect != "undefined") {
   var o = document.addcart.PearlSelect.selectedIndex;
   var mlen = document.addcart.PearlSelect.options[o].value;
}
	window.open('http://www.birkatelyon.com/product.asp?style='+cstyle+'&qty='+mqty+'&size='+msize+'&metal='+mmetal+'&chain='+mchain+'&length='+mlen+'&option='+mopt,'_top');
}