clear_orig = new Image
clear_orig.src = "/ExternalHorizonsWeb/images/button_clear.jpg"
clear_over = new Image
clear_over.src = "/ExternalHorizonsWeb/images/button_clear_over.jpg"

submit_orig = new Image
submit_orig.src = "/ExternalHorizonsWeb/images/button_submit.gif"
submit_over = new Image
submit_over.src = "/ExternalHorizonsWeb/images/button_submit_over.gif"

function validate(f)
{
	if (feedbackForm.name.value == null || isBlank(feedbackForm.name.value))
	{
		alert("Name is required.")

		return false

	}
	else if (feedbackForm.emailText.value == null || isBlank(feedbackForm.emailText.value))
	{
		alert("Email is required.")

		return false

	}
	else if (feedbackForm.comments.value == null || isBlank(feedbackForm.comments.value))
	{
		alert("Comments are required.")

		return false

	}
	else if (!(feedbackForm.areaCode.value == null || isBlank(feedbackForm.areaCode.value)))
	{
		 if (feedbackForm.prefix.value == null || isBlank(feedbackForm.prefix.value) ||
		     feedbackForm.suffix.value == null || isBlank(feedbackForm.suffix.value))
		{
			alert("Please complete number.")

			return false

		}

		if (isNaN(parseInt(feedbackForm.areaCode.value)) ||
		    isNaN(parseInt(feedbackForm.prefix.value)) ||
		    isNaN(parseInt(feedbackForm.suffix.value)))
		{
 			alert("Telephone number must be numeric.")
				
			return false

		}	
	
	}		
	
	return true

}