<!--
function changePrice(f){
	var price;
	var count;
	var element;
	element = f.price;
	for(count=0;count<element.length;count++){
		if(element[count].checked){
			break;
		}
	}
	if(count<element.length){
		//valid index
		if(f.giftwrap[count].checked){
			price = f["price_g_"+(count+1)].value;
			f.itemid.value = f["price_g_"+(count+1)+"_id"].value;
		}
		else{
			price = f["price_"+(count+1)].value;
			f.itemid.value = f["price_"+(count+1)+"_id"].value;
		}
		f.amount.value = price;
		element = document.getElementById("totalprice");
		element.innerHTML = formatNumber(price,"#,##0.00",false);
	}
}
function disableGiftwrap(f,instance){
	var index;
	var element;
	var count;
	element = f[instance.name];
	for(index=0;index<element.length;index++){
		if(element[index].value == instance.value){
			break;
		}
	}
	element = f["giftwrap"];
	for(count=0;count<element.length;count++){
		element[count].disabled = true;
	}
	element[index].disabled = false;
}
function price_onClick(f,instance){
	//disable the checkbox
	disableGiftwrap(f,instance);
	changePrice(f);
}
function giftwrap_onClick(f,instance){
	changePrice(f);
}
function videoProductCheck(f){
	var element,errmsg;
	var count;
	element = f.price;
	for(count=0;count<element.length;count++){
		if(element[count].checked){
			break;
		}
	}
	if(count>=element.length){
		alert("Please select one product to buy.");
		return false;
	}
	element = f.lastname;
	errmsg = "Please enter your last name.";
	if(element.value == ""){
		alert(errmsg);
		element.focus();
		return false;
	}
	element = f.address1;
	errmsg = "Please enter your address.";
	if(element.value == ""){
		alert(errmsg);
		element.focus();
		return false;
	}
	element = f.email;
	errmsg = "Please enter your email address.";
	if(element.value == ""){
		alert(errmsg);
		element.focus();
		return false;
	}
	errmsg = "Please enter a valid email address.";
	if(!validateEmail(element.value,false,false)){
		alert(errmsg);
		element.focus();
		return false;
	}
	
	element = f.country;
	errmsg = "Please enter your country.";
	if(element.value == ""){
		alert(errmsg);
		element.focus();
		return false;
	}
	element = f.phone1;
	errmsg = "Please enter your contact number.";
	if(element.value == ""){
		alert(errmsg);
		element.focus();
		return false;
	}
	errmsg = "Please enter a valid contact number";
	if(!valNumber(element)){
		alert(errmsg);
		element.focus();
		return false;
	}	
	element = f.zip;
	errmsg = "Please enter your postal code.";
	if(element.value == ""){
		alert(errmsg);
		element.focus();
		return false;
	}
	errmsg = "Please enter a valid postal code";
	if(!valNumber(element)){
		alert(errmsg);
		element.focus();
		return false;
	}
	element = f.company;
	errmsg = "Please enter your company.";
	if(element.value == ""){
		alert(errmsg);
		element.focus();
		return false;
	}
	return true;
}
function transcriptProductCheck(f){
	var element,errmsg;
	element = f.lastname;
	errmsg = "Please enter your last name.";
	if(element.value == ""){
		alert(errmsg);
		element.focus();
		return false;
	}
	element = f.address1;
	errmsg = "Please enter your address.";
	if(element.value == ""){
		alert(errmsg);
		element.focus();
		return false;
	}
	element = f.email;
	errmsg = "Please enter your email address.";
	if(element.value == ""){
		alert(errmsg);
		element.focus();
		return false;
	}
	errmsg = "Please enter a valid email address.";
	if(!validateEmail(element.value,false,false)){
		alert(errmsg);
		element.focus();
		return false;
	}
	
	element = f.country;
	errmsg = "Please enter your country.";
	if(element.value == ""){
		alert(errmsg);
		element.focus();
		return false;
	}
	element = f.phone1;
	errmsg = "Please enter your contact number.";
	if(element.value == ""){
		alert(errmsg);
		element.focus();
		return false;
	}
	errmsg = "Please enter a valid contact number";
	if(!valNumber(element)){
		alert(errmsg);
		element.focus();
		return false;
	}	
	element = f.zip;
	errmsg = "Please enter your postal code.";
	if(element.value == ""){
		alert(errmsg);
		element.focus();
		return false;
	}
	errmsg = "Please enter a valid postal code";
	if(!valNumber(element)){
		alert(errmsg);
		element.focus();
		return false;
	}
	element = f.company;
	errmsg = "Please enter your company.";
	if(element.value == ""){
		alert(errmsg);
		element.focus();
		return false;
	}
	return true;
}
//-->