/***********************************************
* Form Validation for Volume Enquiries
***********************************************/

function checkform(f){
	if (f.name.value.length==0) { 
		alert("Please enter your name.");
		f.name.select();
		return false;
	}
	
	if (f.telephone.value.length==0) { 
		alert("Please enter your telephone number.");
		f.telephone.select();
		return false;
	}
	
	if (f.product.value.length==0) { 
		alert("Please enter the product you are interested in.");
		f.product.select();
		return false;
	}
	
	if (f.quantity.value.length==0) { 
		alert("Please enter the approx. quantity of the product you are interested in.");
		f.quantity.select();
		return false;
	}
	
	return checkmail(f.email);
}