// JavaScript Document
function validateForm(frm) {
	var returnValue = false;
	
	if ( BlankField(frm.first_name.value) ){
		alert('You must enter your first name');
		frm.first_name.value = '';
		frm.first_name.focus();
	}
	else if ( BlankField(frm.last_name.value) ){
		alert('You must enter your last name');
		frm.last_name.value = '';
		frm.last_name.focus();
	}
	else if ( BlankField(frm.email.value) ){
		alert('You must enter your email address');
		frm.email.value = '';
		frm.email.focus();
	}
	else if ( !ValidEmail(frm.email.value) ){
		alert('Please enter a valid email address');
		frm.email.value = '';
		frm.email.focus();
	}
	else if ( BlankField(frm.comment.value) ){
		alert('You must enter your comments');
		frm.comment.value = '';
		frm.comment.focus();
	}
	else returnValue = true;
	
	return returnValue;
}