function mailto(name, domain, tld){
	location.href = "mailto:" + name + "@" + domain + "." + tld;
}

function validateSponsor(frm){
var valid=true;

if (frm["name"].value==""){
	frm["name"].style.borderColor="red";
	valid = false;
}else{
	frm["name"].style.borderColor="black";
}
if (frm["email"].value==""){
	frm["email"].style.borderColor="red";
	valid = false;
}else{
	frm["email"].style.borderColor="black";
}
if (frm["amount"].value=="" || isNaN(frm["amount"].value)){
	frm["amount"].style.borderColor="red";
	valid = false;
}else{
	frm["amount"].style.borderColor="black";
}
if (!valid){alert("Fields marked in red are required.\n\nPlease make sure the amount field is a valid number.");}
return valid;
}