function display_box() {

	document.getElementById('show_box').innerHTML = email_box;

}


function clear_email_box() {

	var this_email_address = document.getElementById('email_address').value;

	if( this_email_address != '' && this_email_address != " enter your email address" ) {

		document.getElementById('email_address').value = this_email_address;

	} else if( this_email_address == " enter your email address" )  {

		document.getElementById('email_address').value = '';

	}

}


function check_email_box(status) {

	if( document.getElementById('email_address').value.length < 2 ) document.getElementById('email_address').value = ' enter your email address';

//	if( document.getElementById('email_address').value != ' enter your email address' && status == 1 ) {
	if( status == 1 ) {

		var this_email_address = document.getElementById('email_address').value;
	
		var email_regex = /^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/;
		
		if(!(email_regex.test(this_email_address))) {

			alert('We\'re sorry, but "' + this_email_address + '" does not appear to be a valid email address.\r\nPlease double-check your entry and try again.');
			document.getElementById('email_address').focus();

		} else {

			var source = document.getElementById('how').value;
			return submit_email_address(this_email_address, source);

		}

	}

}



function submit_email_address(email_address, source){

//	return pleaseWait(1, '<img src="http://www.woodinvillebicycle.com/images/loading.gif" width="32" height="32" border="0" alt="loading"><br>Please wait...');

	var queryString = '?id01=' + email_address + '&id02=' + source;

	var ajaxRequest;  // The variable that makes Ajax possible!

	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
		ajaxRequest.overrideMimeType('text/xml');
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Uh oh, we've run into a problem. Please refresh the page and try again.");
				return false;
			}
		}
	}

	// function to receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			if(ajaxRequest.responseText != ''){
				var theResponse = ajaxRequest.responseText;
				if( theResponse != 'invalidSource' ) {
					document.getElementById('show_box').innerHTML = '<table class="box_table"><tr><td><b>' + theResponse + '</b></td></tr></table>';
				} else {
					alert('You selected an invalid option for how you heard about us, please try again.');
					document.getElementById('how_title').style.color='red';
					document.getElementById('how_title').style.fontWeight='bold';
				}
			} else {
				document.getElementById('show_box').innerHTML = '<table class="box_table"><tr><td><b><font color="red">Uh oh, we\'ve run into a problem. Please refresh the page and try again.</font></b></td></tr></table>';
			}
		}
	}

	if(queryString == "") {
		var ajaxDisplay = document.getElementById('show_box');
		ajaxDisplay.innerHTML = '<table class="box_table"><tr><td><b><font color="red">Uh oh, the server is not responding. Please refresh the page and try again.</font></b></td></tr></table>';
	} else {
		ajaxRequest.open("GET", "http://www.woodinvillebicycle.com/submitEmail.php" + queryString, true);
		ajaxRequest.send(null);
	}

}


function pleaseWait() {

	document.getElementById('show_box').innerHTML = '<table class="box_table"><tr><td>Submitting...<br><img src="http://www.woodinvillebicycle.com/images/loading.gif" width="32" height="32" border="0" alt="Please Wait"><br>Please wait...</b></td></tr></table>';
	return;

}