function validateBooking() {
	if (document. frmarticles.name.value == "") {
		alert('Please Enter Your Name');
		return false;
		}
	if (document. frmarticles.school.value == "") {
		alert('Please Enter Your School/Organisation');
		return false;
		}
	if (document. frmarticles.address.value == "") {
		alert('Please Enter Your Address');
		return false;
		}
	if (document. frmarticles.postcode.value == "") {
		alert('Please Enter Your Post Code');
		return false;
		}

	if (document. frmarticles.telephone.value == "") {
		alert('Please Enter Your Telephone Number');
		return false;
		}
	
	// check if email field is blank
	if (document. frmarticles.email.value == "")
		{
		alert("Please enter a value for the \"Email\" field.");
		 frmarticles.email.focus();
		return (false);
		}

		// test if valid email address, must have @ and .
		var checkEmail = "@.";
		var checkStr =  frmarticles.email.value;
		var EmailValid = false;
		var EmailAt = false;
		var EmailPeriod = false;
		for (i = 0;  i < checkStr.length;  i++)
		{
		ch = checkStr.charAt(i);
		for (j = 0;  j < checkEmail.length;  j++)
		{
		if (ch == checkEmail.charAt(j) && ch == "@")
		EmailAt = true;
		if (ch == checkEmail.charAt(j) && ch == ".")
		EmailPeriod = true;
			if (EmailAt && EmailPeriod)
				break;
	  		if (j == checkEmail.length)
		break;
		}
			// if both the @ and . were in the string
		if (EmailAt && EmailPeriod)
		{
		EmailValid = true
		break;
		}
		}
		if (!EmailValid)
		{
		alert("The \"email\" field must contain an \"@\" and a \".\".");
			 frmarticles.email.focus();
		return (false);
	}		
document.frmarticles.action = "articles.cfm"
 		
 return true;
	}