function isEMail(x)
{
	if (x.length == 0) {return false};
	eflag = 0;
	index = x.indexOf("@");
	if (index <= 0) eflag = 1;
	
	x = x.substring(index+1);
	if (x.length == 0) eflag = 1;
	
	index = x.indexOf(".");
	if (index <= 0) eflag = 1;
	
	x = x.substring(index+1);
	if (x.length == 0) eflag = 1;
	
	if (eflag == 1)
		return false ;
	else
		return true;
}
function chkmail()
{
	if(document.contactform.personname.value=="")
	{
		alert("Please Enter Your Name");
		document.contactform.personname.focus();
		return false;
	}
	else if(document.contactform.personemail.value=="")
	{
		alert("Please Enter Your EMail Address");
		document.contactform.personemail.focus();
		return false;
	}
	else if(!isEMail(document.contactform.personemail.value))
	{
		alert("Please Enter valid EMail Address");
		document.contactform.personemail.focus();
		document.contactform.personemail.select();
		return false;
	}
	else if(document.contactform.personmessage.value=="")
	{
		alert("Please Enter Message");
		document.contactform.personmessage.focus();
		return false;
	}
	else
	{
		document.contactform.action="google-search-appliance_action.php";
		document.contactform.submit();
	}

}