function validate_required(field,alerttxt){
	with (field){
		if (value==null||value==""){
			alert(alerttxt);return false;
		}else{
			return true;
		}
	}
}

function validate_email(field,alerttxt){
	with (field){
		apos=value.indexOf("@");
		dotpos=value.lastIndexOf(".");
		if (apos<1||dotpos-apos<2){
			alert(alerttxt);return false;
		}else{
			return true;
		}
	}
}

function validate_form(thisform) {

	with (thisform) {
		/* REQUIRED FIELDS */
		if (validate_required(name,"Name must be filled out!")==false) {
			name.focus();return false;
		}else{
			if (validate_required(phone,"Phone must be filled out!")==false) {
				phone.focus();return false;
			}else{
				if (validate_required(date,"Event Date must be filled out!")==false) {
					date.focus();return false;
				}else{		
					if (validate_required(email,"Email must be filled out!")==false) {
						email.focus();return false;
					}else{
						  if (validate_email(email,"Not a valid e-mail address!")==false){
							  email.focus();return false;
						  }	
					}
				}
			}
		}	
	}
}