/** shipping cost popup functions **/
function get_shcost(url) {
	var zip = document.getElementById('zip');
	var country = document.getElementById('country');
	var qs = '';
	if(zip) { qs+='&ship_zip='+zip.value; }
	if(country) { qs+='&ship_country='+country.options[country.selectedIndex].value; }
	if(qs != '') { popup(url+qs); }
}

function set_shcost(cost) {
	var obj = document.getElementById('shcost');
	if(obj) { obj.innerHTML = cost; }
}