function ValidateForm(f){
	with(f){
		if (isEmpty(_1_Name.value)) {
			alert("Please enter your Name");
			_1_Name.focus();
			return false;
		}
		if (isEmpty(_2_Email_From.value)) {
			alert("Please enter your Email Address");
			_2_Email_From.focus();
			return false;
		}
		
		if ( !isEmail(_2_Email_From.value) ) {
			alert("Please enter a valid Email Address.");
			_2_Email_From.focus();
			return false;
		}
		if (isEmpty(_8_Postcode.value)) {
			alert("Please enter your Postcode");
			_8_Postcode.focus();
			return false;
		}
		if (isEmpty(_20_Comments.value)) {
			alert("Please enter your Comments or Questions");
			_20_Comments.focus();
			return false;
		}

	

	}
	return true;
}