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

function clearVal()
{
	if(document.frm.email.value == "Enter your E-mail id for Newsletter")
		document.frm.email.value = "";
}

function valNewsLetter()
{
	if(document.frm.email.value == "Enter your E-mail id for Newsletter" || document.frm.email.value == "")
	{
		alert("Please enter your email id where you wish to receive the Newsletter!");
		document.frm.email.focus();
		return false;
	}
	else if(!isvalidemail(document.frm.email.value))
	{
		alert("Only a valid email id can fetch you the Newsletter! Re-enter email id plz");
		document.frm.email.focus();
		return false;
	}
}