function contact() {

	if($('#email').val() == '') {
		alert("Please provide your email.");
		$('email').focus();
		return false;
	}
	else if(!isValidEmailCheck($('#email').val())){
        alert("The email address doesn't seem valid.\n Please provide a valid address.\n(ex: name@yourdomain.com)");
        f.email.focus();
        return false;
    }
	if($('#name').val() == '') {
        alert("Please provide your name.");
        $('name').focus();
        return false;
    }	

	//$('#contactus-content').html(' ');
    var options = { success: function(response) {
		Data = response.split('~~');
		$('#ajax_response_area').html(Data[1]).addClass('ajax_msg');

		if(Data[0].match('success')) {
			setTimeout("closeContactUs();",2000);
		}
		else {
			refresh_captcha();
		}
	}};
    $('#contactus-form').ajaxSubmit(options);
}

function closeContactUs() {
    tb_remove();
}

function isValidEmailCheck(str){
    return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
}

function refresh_captcha() {
	var captcha_options = { success: function(response) {
        $('#captcha-image').attr("src",response);
    }};
	$('#refresh-captcha-form').ajaxSubmit(captcha_options); 
	return true;
}