function CheckForm () { 
	//Initialize variables
	var errorMsg = "";
	//Check for survey
	var radios = document.contact.involved.length;
	for (i=0;i<radios;i++){
		if(document.contact.involved[i].checked) 
			var survey = document.contact.involved[i].value;
	}		
	//Check for a first name
	if (document.contact.name.value == ""){
		errorMsg = "Please enter your First name";	
	}	
	//Check for a last name
	else if (document.contact.surname.value == ""){
		errorMsg = "Please enter your Last name";
	}	 	
	//Check for an e-mail address and that it is valid
	else if ((document.contact.email.value == "") || (document.contact.email.value.length > 0 && (document.contact.email.value.indexOf("@",0) == - 1 || document.contact.email.value.indexOf(".",0) == - 1))) { 
		errorMsg = "Please enter a valid email address";
	}
	//Check for phone number
	else if (document.contact.phone.value == ""){
		errorMsg = "Please enter your phone number";
	}
	//Check for street
	else if (document.contact.street1.value == ""){
		errorMsg = "Please enter your street";
	}
	//Check for town
	else if (document.contact.town.value == ""){
		errorMsg = "Please enter your town";
	}
	//Check for postcode
	else if (document.contact.postcode.value == ""){
		errorMsg = "Please enter your postcode";
	}
	//Check for an enquiry
	else if (document.contact.message.value == "") { 
 		errorMsg = "Please enter an enquiry";
	}
	//Check for survey
	else if (!survey) { 
 		errorMsg = "Please choose how you would describe yourself as involved in";
	}
	//If there is a problem with the form then display an error
	if (errorMsg != ""){
		//document.contact.errormessage.value = errorMsg;
		//document.getElementById("errormessage").style.display = "block";
		//self.scrollTo(0,0);
		alert(errorMsg);
		return false;
	}
	else {
		//document.contact.errormessage.value = "";
		//document.getElementById("errormessage").style.display = "none";	
		return true;
	}
}