function validate(form) {
	var formUserName = form.username.value;
	var formUserEmail = form.useremail.value;
	var formUserMessage = form.usermessage.value;
	
	var formUserPostcard;
	for (var i=0; i<form.userpostcard.length; i++) {
		if (form.userpostcard[i].checked) {
			formUserPostcard = form.userpostcard[i].value;
		}
	}
	
	var formFriendName1 = form.friendname1.value;
	var formFriendEmail1 = form.friendemail1.value;
	var formFriendName2 = form.friendname2.value;
	var formFriendEmail2 = form.friendemail2.value;
	var formFriendName3 = form.friendname3.value;
	var formFriendEmail3 = form.friendemail3.value;
	var formFriendName4 = form.friendname4.value;
	var formFriendEmail4 = form.friendemail4.value;
	var formFriendName5 = form.friendname5.value;
	var formFriendEmail5 = form.friendemail5.value;
	var formFriendName6 = form.friendname6.value;
	var formFriendEmail6 = form.friendemail6.value;
	
	if (formUserName == "") {
		alert("Please Enter Your Name");
		form.username.focus();
	} else if ((formUserEmail.length<6) || (formUserEmail.indexOf(",")>=0) || (formUserEmail.indexOf(";")>=0) || (formUserEmail.indexOf(":")>=0) || (formUserEmail.indexOf("/")>=0) || (formUserEmail.indexOf(" ")>=0) || (formUserEmail.indexOf("@")<=0) || (formUserEmail.indexOf("@") != formUserEmail.lastIndexOf("@")) || (formUserEmail.lastIndexOf(".")<formUserEmail.indexOf("@")) || ((formUserEmail.lastIndexOf(".")+3)>formUserEmail.length)) {
		alert("Please Enter A Valid Email Address");
		form.useremail.focus();
	} else if (formUserMessage == "") {
		alert("Please Enter A Message For Your Friend(s)");
		form.usermessage.focus();
	} else if (formUserPostcard == null) {
		alert("Please Choose A Postcard To Send");
		form.userpostcard.focus();
	} else if (formFriendName1 == "") {
		alert("Please Enter The Name Of At Least One Friend");
		form.friendname1.focus();
	} else if ((formFriendEmail1.length<6) || (formFriendEmail1.indexOf(",")>=0) || (formFriendEmail1.indexOf(";")>=0) || (formFriendEmail1.indexOf(":")>=0) || (formFriendEmail1.indexOf("/")>=0) || (formFriendEmail1.indexOf(" ")>=0) || (formFriendEmail1.indexOf("@")<=0) || (formFriendEmail1.indexOf("@") != formFriendEmail1.lastIndexOf("@")) || (formFriendEmail1.lastIndexOf(".")<formFriendEmail1.indexOf("@")) || ((formFriendEmail1.lastIndexOf(".")+3)>formFriendEmail1.length)) {
		alert("Please Enter A Valid Email Address Of At Least One Friend");
		form.friendemail1.focus();
	} else {
		form.action = "submit.php";
		form.submit();
	}
}