function toggle_feedback(show)
	{
	
		if(show == false)
		{
		document.getElementById('feedback').innerHTML = '';
		document.getElementById('feedback').style.display = 'none';
		document.getElementById('overlay').style.display = 'none';
		toggle_wrapper(true);
		} else {
		document.getElementById('feedback').style.display = 'block';
		document.getElementById('overlay').style.display = 'block';
		toggle_wrapper(false);
		}
	
	}
	
	
	
function toggle_wrapper(show)
	{
	
		if(show == false)
		{
//		document.getElementById('wrapper').style.display = 'none';
//		document.getElementById('dummy').style.display = 'block';
		document.getElementById('video').innerHTML = '';
		} else {
//		document.getElementById('wrapper').style.display = 'block';
//		document.getElementById('dummy').style.display = 'none';
		force_refresh = true;
		changeVideo(current);
		}
	
	}
	


function guess_focus()
	{
	var guess_input = document.getElementById('guess_input');
	
		if(guess_input.value == "Enter guess here")
		{
		guess_input.value = "";
		}
	
	}
	
	
	
	
	
	
	
	
	
function guess_blur()
	{
	var guess_input = document.getElementById('guess_input');
	
		if(guess_input.value == "")
		{
		guess_input.value = "Enter guess here";
		}
	
	}








function check_key(evt)
{
evt = (evt) ? evt : event;
var charCode = (evt.which) ? evt.which : evt.keyCode;

	if(charCode==13)
	{ 
	send_voucher();
	}
}










function submit_guess()
	{
	var feedback_div = document.getElementById('feedback');
	var overlay_div = document.getElementById('overlay');
	var loading_div = document.getElementById('loading');
	var loading_msg = document.getElementById('loading_message');
	
	var input;
	(overlay_div.style.display == 'block') ? input=document.getElementById('guess_input_feedback') : input=document.getElementById('guess_input');
	var guess = input.value;
	
	
		if( (guess !== "Enter guess here") && (guess !== "") )
		{
		loading_msg.innerHTML = 'Checking...';
		overlay_div.style.display = 'block';
		loading_div.style.display = 'block';
		feedback_div.style.display = 'none';
		toggle_wrapper(false);
	
		var params = 'guess='+guess;
		load('system/components/guess.asp', params, 'feedback');
		} else {
		alert('You forgot to enter a guess.');
		}
		
	return false;
	}






	function guess_again()
	{
	document.getElementById('guess_again').style.display = 'block';
	document.getElementById('wrong').style.display = 'none';
	document.getElementById('guess_input_feedback').focus();
	}








function finish(result)
	{
	document.getElementById('loading').style.display = 'none';
	document.getElementById('feedback').style.display = 'block';
	
	
		switch(result)
		{
		case 'correct':
		document.getElementById('name').focus();
		  break;
		      
		case 'thanks':
//		document.getElementById('guess').innerHTML = '<p id="solved"><strong class="hidden">Solved!</strong></p>';
		  break;
		  
		case 'error':

		  break;
		  
		default:

		}
		
		
	}









function send_voucher()
	{
	var feedback_div = document.getElementById('feedback');
	var overlay_div = document.getElementById('overlay');
	var loading_div = document.getElementById('loading');
	var loading_msg = document.getElementById('loading_message');
	
	var user_name = document.getElementById('name').value;
	var email = document.getElementById('email').value;
	var subscribe = (document.getElementById('subscribe').checked == true) ? 1 : 0;

		if(validate_required(user_name,'Please enter your name.', 'name') && validate_email(email, 'Your email appears to be invalid. Please check that you entered it correctly and try again.', 'email'))
		{
		loading_msg.innerHTML = 'Please wait...';
		overlay_div.style.display = 'block';
		loading_div.style.display = 'block';
		feedback_div.style.display = 'none';
		
//		user_name = user_name.replace(' ','%20');
		user_name = user_name.replace(/ /g, "%20");
		
		var params = 'name='+user_name+'&email='+email+'&subscribe='+subscribe;
		load('system/components/send_voucher.asp', params, 'feedback');
		} 

	
	return false;
	}









function validate_required(string,alerttxt, id)
	{
		if (string==null||string=="")
		{
		alert(alerttxt);
		document.getElementById(id).focus();
		document.getElementById(id+'_label').style.color = "#902A32";
		return false;
		} else {
		document.getElementById(id+'_label').style.color = "#828080";
		return true;
		}
	}










function validate_email(string,alerttxt, id)
	{
	apos=string.indexOf("@");
	dotpos=string.lastIndexOf(".");
	
		if (apos<1||dotpos-apos<2) 
		{
		alert(alerttxt);
		document.getElementById(id).focus();
		document.getElementById(id+'_label').style.color = "#902A32";
		return false;
		} else {
		document.getElementById(id+'_label').style.color = "#828080";
		return true;
		}
	}