function MM_goToURL() { //v3.0

  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;

  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");

}
 
<!--
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
//-->

//171205 - site specific - the qty box alert should be in the onclick event of the update cart button.

function update_cart(frmname)
{


var is_num = 0, is_zero = 0;
var msg = "", dc, str = "";

dc = eval("document." + frmname);

	for(i = 0; i < dc.elements.length; i++)
	{
		str = dc.elements[i].getAttribute('name').substring(0,7);
		
		if(str == "cartqty")
		{
		
			if(isNaN(dc.elements[i].value) )
			{
				is_num = 1;
				dc.elements[i].value = 1;
			}
	
			if(dc.elements[i].value == 0 || dc.elements[i].value.length == 0)
			{
				is_zero = 1;
				dc.elements[i].value = 1;
			}

			/*
			if(is_num == 1 && is_zero == 1)
				break;
			*/
		}
		
	} //end for

	if(is_num == 1)
			msg+="Please enter quantity greater than 0.";


	if(is_zero == 1)
			msg+="Please enter quantity greater than 0.\n(if you wish to remove a product from your shopping cart,\n use the 'delete' button)";


	if(msg.length > 0)
	{
		alert(msg);
	}
	else
	{
		set_field(frmname,'submit_action','update');
		dc.submit();
	}





}