$(document).ready(function(){
	checkSearch();
	checkNewsletter();
	clearField();
	});

function checkSearch(){
	$(".errorSearch").hide();
	$("#searchSubmit").click(function(){
	var key = $("#searchKeyword").val();
	if((key=="") || (key=="Search"))
		{
			$(".errorSearch").html("Please specify a keyword!");
			$(".errorSearch").show();
			$("#searchKeyword").val('');
			$("#searchKeyword").focus();
			return false;
		}
	});
}

function checkNewsletter(){
	$(".errorNewsletter").hide();
	$("#newsletterSignup").click(function(){
	var key = $("#newsletterEmail").val();
	if((key=="") || (key=="Enter you email address"))
		{
			$(".errorNewsletter").html("Please enter an email address!");
			$(".errorNewsletter").show();
			$("#newsletterEmail").val('');
			$("#newsletterEmail").focus();
			return false;
		} else if(!isEmail(key))
			{
			$(".errorNewsletter").html("Email address not valid!");
			$(".errorNewsletter").show();
			$("#newsletterEmail").val('');
			$("#newsletterEmail").focus();
			return false;
			}
	});
}

function isEmail(email){
			AtPos = email.indexOf("@")
			StopPos = email.lastIndexOf(".")
			if (AtPos == -1 || StopPos == -1) {
			return false;
			} else {
				return true;	
				}
}

function clearField(){
	$(this).click(function(){
	$(this).val('');								   
	});
}