// Global variable for canSubmit function.
canSubmitForm = true;


function check(form)
	{

	var doneYet = true;

	doneYet = doneYet && first_name(form);

	if (doneYet) doneYet = doneYet && last_name(form);

	if (doneYet) doneYet = doneYet && organization(form);
	
	if (doneYet) doneYet = doneYet && address(form);
	
	if (doneYet) doneYet = doneYet && city(form);
	
	if (doneYet) doneYet = doneYet && state(form);
	
	if (doneYet) doneYet = doneYet && zip_code(form);
		
	if (doneYet) doneYet = doneYet && phone_number(form);
		
	if (doneYet) doneYet = doneYet && email(form);
	
	if (doneYet) doneYet = doneYet && event_location(form);

	if (doneYet) doneYet = doneYet && attendees(form);
	
	if (doneYet) doneYet = doneYet && event_date(form);
	
	return doneYet && canSubmit(form);
	
	}



// ------------------------------





// ===============================
/* ALWAYS include the canSubmit function. This prevents users from submitting the form more than once. */

function canSubmit(form) {
	// Prevents a user from clicking the submit button twice
	if(canSubmitForm) {
		canSubmitForm = false;
		return true;
	} else {
		return false;
	}
}

// ===============================


// zip_code
function zip_code(form)
	{

	if ( (form.zip) && (form.zip.value.length == 0) )
		{
		alert("Please enter your zip code.");
		form.zip.focus();
		return false;
		}
	return true;
	}


// event_date
function event_date(form)
	{

	if ( (form['00N30000000g78t']) && (form['00N30000000g78t'].value.length == 0) )
		{
		alert("Please enter the event date.");
		form['00N30000000g78t'].focus();
		return false;
		}
	return true;
	}

// attendees
function attendees(form)
	{

	if ( (form['00N30000000g757']) && (form['00N30000000g757'].value.length == 0) )
		{
		alert("Please enter the number of attendees.");
		form['00N30000000g757'].focus();
		return false;
		}
	return true;
	}


// event_location
function event_location(form)
	{

	if ( (form['00N30000000g751']) && (form['00N30000000g751'].value.length == 0) )
		{
		alert("Please enter the event location.");
		form['00N30000000g751'].focus();
		return false;
		}
	return true;
	}

// phone_number
function phone_number(form)
	{

	if ( (form.phone_number) && (form.phone_number.value.length == 0) )
		{
		alert("Please enter your phone number.");
		form.phone_number.focus();
		return false;
		}
	return true;
	}


// organization
function organization(form)
	{

	if ( (form.company) && (form.company.value.length == 0) )
		{
		alert("Please enter your organization.");
		form.company.focus();
		return false;
		}
	return true;
	}


// address
function address(form)
	{

	if ( (form.street) && (form.street.value.length == 0) )
		{
		alert("Please enter your address.");
		form.street.focus();
		return false;
		}
	return true;
	}


// city
function city(form)
	{

	if ( (form.city) && (form.city.value.length == 0) )
		{
		alert("Please enter your city.");
		form.city.focus();
		return false;
		}
	return true;
	}


// state
function state(form)
	{

	if ( (form.state) && (form.state.value.length == 0) )
		{
		alert("Please enter your state.");
		form.state.focus();
		return false;
		}
	return true;
	}


// first_name
function first_name(form)
	{

	if ( (form.first_name) && (form.first_name.value.length == 0) )
		{
		alert("Please enter your first name.");
		form.first_name.focus();
		return false;
		}
	return true;
	}


// last name
function last_name(form)
	{

	if ( (form.last_name) && (form.last_name.value.length == 0) )
		{
		alert("Please enter your last name.");
		form.last_name.focus();
		return false;
		}
	return true;
	}


// email
function email(form)
        {
        /* email removed from filter2  \_\-  \_\- */
        if (form.email)
		{
		var filter = /^[A-Za-z0-9][A-Za-z0-9\_\-\.]*\@[A-Za-z0-9][A-Za-z0-9\_\-\.]*\.[A-Za-z]{2,3}$/;
		var filter2 = /^.*[\.\@][\.\@]+.*$/;
		if( (!filter.test( form.email.value ))  || ( filter2.test( form.email.value )) )
			{
			alert( "Please enter a valid email address." )
			form.email.focus();
			return false;
			}
		}
	return true;
	}