var formtype = "";

function popemail(url) {
	leftcorner = (screen.width-600) / 2;
	topcorner = (screen.height-500) / 2;
	window.open(url,'_blank','width=600,height=500,left='+leftcorner+',top='+topcorner);
}

function validate() {
	if (formtype == "friend") {
		var emailaddress=document.contactform.tofriend
		if (document.contactform.tofriend.value=="") {
			alert("Please fill out the To field.");
			document.contactform.tofriend.focus();
			return false;
		}
		if (checkemail(emailaddress.value)==false){
			emailaddress.value="";
			emailaddress.focus();
			return false;
		}
	}
	if (document.contactform.name.value=="") {
		alert("Please fill out the Name field.");
		document.contactform.name.focus();
		return false;
	}
	var emailaddress=document.contactform.email
	if (document.contactform.email.value=="") {
		alert("Please fill out the Email field.");
		document.contactform.email.focus();
		return false;
	}
	if (checkemail(emailaddress.value)==false){
		emailaddress.value="";
		emailaddress.focus();
		return false;
	}
	if (document.contactform.message.value=="") {
		alert("Please fill out the Message field.");
		document.contactform.message.focus();
		return false;
	}
	document.contactform.submit();
}
function checkemail(str) {
	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1){
		alert("Please enter a valid Email Address.");
		return false;
	}
	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		alert("Please enter a valid Email Address.");
		return false;
	}
	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		alert("Please enter a valid Email Address.");
		return false;
	}
	if (str.indexOf(at,(lat+1))!=-1){
		alert("Please enter a valid Email Address.");
		return false;
	}
	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		alert("Please enter a valid Email Address.");
		return false;
	}
	if (str.indexOf(dot,(lat+2))==-1){
		alert("Please enter a valid Email Address.");
		return false;
	}
	if (str.indexOf(" ")!=-1){
		alert("Please enter a valid Email Address.");
		return false;
	}
	return true;
}