function searchclk()
 {
	document.basic_search.SiteSearch.value="";
 }
function searchclk2()
 {
	if(document.basic_search.SiteSearch.value=="")document.basic_search.SiteSearch.value="Enter Keyword";
 }
 function searchclk3()
 {
 if(document.basic_search.SiteSearch.value=="Enter Keyword")
    {
		document.basic_search.SiteSearch.value="";
 		document.basic_search.SiteSearch.focus();
		return false;
	}
 }
 
 
function newslwetter1()
 {
	document.nletter.newsletter.value="";
 }
function newslwetter2()
 {
	if(document.nletter.newsletter.value=="")document.nletter.newsletter.value="Your e-mail address";
 }

function validate_form()
{

var validEmailID = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/;

if(document.nletter.newsletter.value=="")
{
alert("please enter Email id");
document.nletter.newsletter.focus();
return false;
}

	 
	var strEmail = document.nletter.newsletter.value ;
	if (strEmail.search(validEmailID) == -1) 
	{
		alert(" A valid e-mail address is required.\r\Please check you have entered your details correctly.");
		document.nletter.newsletter.focus();
		document.nletter.newsletter.select();
		return false;
	} 
}