/*

All the javascript and jQuery for the form mailer.
*/

function NcheckMyEmail(){
	
		var email = $("#newsletterEmail").val();
        	            	
		if(email != 0)
		{
			if(NisValidEmailAddress(email))
			{
				$("#newsletterEmail").css("background-image","url('images/validYes.png')"); 
				$("#newsletterEmail").css("background-position", "center right");
				$("#newsletterEmail").css("background-repeat", "no-repeat");
			} 
			else
			{
				$("#newsletterEmail").css({"background-image": "url('images/validNo.png')"});
                $("#newsletterEmail").css("background-position", "center right");
				$("#newsletterEmail").css("background-repeat", "no-repeat"); 
			}
		}
		else
		{
			$("#newsletterEmail").css({"background-image": "none"});			
		}
	
	}



function NSetupEmailValidator() {



	$("#newsletterEmail").keyup(NcheckMyEmail);
	$("#newsletterEmail").blur(NcheckMyEmail);
	$("#newsletterEmail").focus(NcheckMyEmail);

}

function NisValidEmailAddress(emailAddress) {
	var pattern = new RegExp(/^(("[\w-\s]+")|([\w-]+(?:\.[\w-]+)*)|("[\w-\s]+")([\w-]+(?:\.[\w-]+)*))(@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$)|(@\[?((25[0-5]\.|2[0-4][0-9]\.|1[0-9]{2}\.|[0-9]{1,2}\.))((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\.){2}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\]?$)/i);
	return pattern.test(emailAddress);
	}
	



/*
    Clear fields if the original value is in there
*/
function NClearField()
{
    
    if ($(this).val() == "Your email address")
    {
        $(this).val("");
    }
}

/*
    Clear the field on focus, if the user hasn't changed the value
*/
function NAttachEvents()
{

    $("#newsletterEmail").focus(NClearField);

    NSetupEmailValidator();
}

$(document).ready(NAttachEvents);