function checkValue(value)
{
	var rNameLabel = document.getElementById('rNameLabel');
	var rNameField = document.getElementById('r_name');
	
	if(rNameLabel && rNameField)
	{
		if(value == 2)
		{
			rNameField.style.display = '';
			rNameLabel.style.display = '';
		}
		else
		{
			rNameField.style.display = 'none';
			rNameLabel.style.display = 'none';
			rNameField.value = '';
		}
	}
}

function checkForm()
{
	var formObject = document.getElementById('contactForm');
	var error = false;
	var regexp = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
	
	if(formObject)
	{
		if(formObject['firstname'].value.replace(/\s+/g,'').length == 0)
		{
			error = true;
			
			alert('Please enter your first name ! ');
			formObject['firstname'].focus();
		}
		else if(formObject['lastname'].value.replace(/\s+/g,'').length == 0)
		{
			error = true;
			
			alert('Please enter your last name ! ');
			formObject['lastname'].focus();
		}
		else if(formObject['email'].value.replace(/\s+/g,"").length == 0)
		{
			error = true;
			
			alert('Please enter your email address ! ');
			formObject['email'].focus();
		}
		else if(formObject['email'].value.search(regexp) == -1)
		{
			error = true;
			
			alert('Please enter a valid email address ! ');
			formObject['email'].focus();
		}
		
		if(error)
		{
			return false;
		}
		else
		{
			formObject['mode'].value = 'send';
			formObject.submit();							
		}
	}
}