function checkElements()
{
	var checkNameBool = checkName();
	var checkMailBool = checkMail();
	//var checkAppBool = checkApp();
	var checkOSVersionBool = checkOSVersion();
	var checkFeedbackTypeBool = checkFeedbackType();
	var checkTitleBool = checkTitle();
	var checkCommentsBool = checkComments();

	if (checkMailBool == false || checkNameBool == false || checkTitleBool == false || checkOSVersionBool == false || checkFeedbackTypeBool == false || checkCommentsBool == false)
	{
		return false;
	}

	return true;
}

function checkMail()
{
	var x = document.getElementById('e-mail').value;
	var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;

	// If the email isn't in the right form, display an error message'
	if (!filter.test(x)) {
		document.getElementById('incorrectMail').innerHTML = "<div class=\"errorDiv\"><img src=\"../images/tinyalert.png\" alt=\"Please enter a valid email address in the form user@host.com\"></div>";
		return false;
	}

	document.getElementById('incorrectMail').innerHTML = '';
	return true;
}

function checkName()
{
	var x = document.getElementById('username').value;
	
	// If the value of the name field hasn't changed, display an error
	if (x == '' || x == 'Your Name')
	{
		document.getElementById('incorrectName').innerHTML = "<div class=\"errorDiv\"><img src=\"../images/tinyalert.png\" alt=\"Please enter a name\"></div>";
		return false;
	}

	document.getElementById('incorrectName').innerHTML = '';
	return true;
}

function checkTitle()
{
	var x = document.getElementById('title').value;
	
	// If the value of the title field hasn't changed, display an error
	if (x == 'Feedback Title' || x == '')
	{
		document.getElementById('incorrectTitle').innerHTML = "<div class=\"errorDiv\"><img src=\"../images/tinyalert.png\" alt=\"Please enter a subject\"></div>";
		return false;
	}

	document.getElementById('incorrectTitle').innerHTML = '';
	return true;
}

/*
function checkApp()
{
	var pullDown = document.getElementById('applications');

	if (pullDown.value == "none")
	{
		document.getElementById('incorrectApplication').innerHTML = "<div class=\"errorDiv\"><img src=\"../images/tinyalert.png\" alt=\"Please select an application\"></div>"; 
		return false;
	}

	document.getElementById('incorrectApplication').innerHTML = '';
	return true;
}
*/

function checkComments()
{
	var x = document.getElementById('Comments').value;

	if (x == '')
	{
		document.getElementById('incorrectComments').innerHTML = "<div class=\"errorDiv\"><img src=\"../images/tinyalert.png\" alt=\"Please enter a comment\"></div>";
		return false;
	}

	document.getElementById('incorrectComments').innerHTML = '';
	return true;
}

function checkOSVersion() 
{ 
	var errorText = "Please select an OS version"; 
	var pullDown = document.getElementById('OSVersion');

	// If the title or divider are selected, print an error 
	if (pullDown.value == "none") 
	{
		document.getElementById('incorrectOSversion').innerHTML = "<div class=\"errorDiv\"><img src=\"../images/tinyalert.png\" alt=\"" + errorText + "\"></div>"; 
		return false; 
	}

	document.getElementById('incorrectOSversion').innerHTML = ''; 
	return true; 
} 

function checkFeedbackType() 
{ 
	var pullDown = document.getElementById('Type');

	// If the title or divider are selected, print an error 
	if (pullDown.value == "none") 
	{ 
		document.getElementById('incorrectFeedbackType').innerHTML = "<div class=\"errorDiv\"><img src=\"../images/tinyalert.png\" alt=\"Please select a query type\"></div>"; 
		return false; 
	} 

	document.getElementById('incorrectFeedbackType').innerHTML = ''; 
	
	return true; 
}