function VerifyCheckBox(checkBoxElement)
{
	if (checkBoxElement.checked)	checkBoxElement.value = 'true';
	else checkBoxElement.value = 'false';
}

function ValidateData()
{
	var element = document.getElementById('txtFullName');
	if (element.value == "")
	{
		alert('Name is required.');
		element.focus();
		return (false);
	}
	
	var element = document.getElementById('txtCity');
	if (element.value == "")
	{
		alert('City is required.');
		element.focus();
		return (false);
	}
	
	
	var element = document.getElementById('txtEmail');
	if ((element.value == "") || (element.value == 'Email'))
	{
		alert('Email is required.');
		element.focus();
		return (false);
	}
	else
	{
		if(!ValidateEmail(element.value))
		{
			alert("Please check the emails address");
			element.focus();
			return false;
		}
	}
	
	
	element = document.getElementById('txtPhone');
	if (element.value == "")
	{
		alert('Mobile Number is required.');
		element.focus();
		return false;
	}
	else
	{
		if(!ValidatePhone(element.value))
		{
			alert("Please, enter a valid cell phone number.");
			element.focus();
			return false;
		}
	}
	
	element = document.getElementById('txtExtPhone');
	
	if(!ValidatePhone(element.value))
	{
		alert("Please, enter a valid phone number.");
		element.focus();
		return false;
	}
	
	element = document.getElementById('txtComments');
	if (element.value == "")
	{
		alert('Comments is required.');
		element.focus();
		return (false);
	}

	
	return (true);
}

function ValidatePhone(incoming)
{
	var ValidChars = "0123456789.()- ";
	var IsCorrect=true;
	var Char;

	for (cont = 0; cont < incoming.length && IsCorrect == true; cont++) 
	{ 
		Char = incoming.charAt(cont); 
		if (ValidChars.indexOf(Char) == -1) 
			return false;
	}
	return true;
}

function ValidateEmail(valor)
{
	if (/\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/.test(valor))
	return true;
	else
	return false;
}