//this function validates the form
function Validate() {
	document.getElementById('submit_form').value="Sending...";
	document.getElementById('submit_form').disabled=true;

	var errfound = "false";
	var errmsg = "";

	var valfname = document.regform.fname.value;
	var vallname = document.regform.lname.value;
	var valemail = document.regform.email.value;
	var valphone = document.regform.office_phone.value;
	var valinterest = document.regform.interest.value;
	
	if (valfname.length < 1) {
		errfound = "true";
		errmsg = errmsg + "Please enter a First Name. \n";
	}
	
	if (vallname.length < 1) {
		errfound = "true";
		errmsg = errmsg + "Please enter a Last Name. \n";
	}
	if ((valemail.length < 5) || (valemail.indexOf("@",1)==-1)) {
		errfound = "true";
		errmsg = errmsg + "Please enter a valid Email Address. \n";
	}
	if (valphone.length < 10) {
		errfound = "true";
		errmsg = errmsg + "Please enter a valid Phone Number. \n";
	}
	if (valinterest.length < 1) {
		errfound = "true";
		errmsg = errmsg + "Please select a topic of Interest. \n";
	}

	if (errfound == "true") {
		alert(errmsg);
	    document.getElementById('submit_form').disabled=false;
	    document.getElementById('submit_form').value="Submit";
		return(false);
	} else {
		return(true);
	}
	return(false);
}//end function