function checkEmail(){
var emailIdTxt = document.getElementById("newsletterEmailId").value;
if(emailIdTxt=="Enter Your Email Id"){
document.getElementById("newsletterEmailId").value = "";
}
}
function isNewsletterEmail(ThisObject)
{ 
	var bFlag1 = false;
	var bFlag2 = false;
	var bFlag3 = false;
	
	if(ThisObject.length == 0) 	
		return false;
	
	for(var i=0; i< ThisObject.length; i++) 
		if("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ@_-.".indexOf(ThisObject.charAt(i))== -1) 
			return false; 

	for(var i=0; i< ThisObject.length; i++) 
	{
		if("@".indexOf(ThisObject.charAt(i))!= -1) 
			bFlag1=true;
		if(".".indexOf(ThisObject.charAt(i))!= -1) 
			bFlag2=true;
		if(ThisObject.indexOf("@.")<0)
			bFlag3=true;
	}
	
	if((bFlag1 == false) || (bFlag2 == false) || (bFlag3 == false)){
	alert('Invalid Email Id.');
		return false; 
	}else{
		return true;
	}
}
function sendNewsletter(frmNewsLetter){

	var strEmailID	= frmNewsLetter.newsletterEmailId;
	//alert(strEmailID.value.length);

	if(hasFieldOnlySpaces(strEmailID)==false || isFieldEmpty(strEmailID)==false || strEmailID.value == "Enter Your Email Id")
	{
		alert("Please Enter Your Email-ID !!");
		//frmNewsLetter.txtEmail.focus();
		return false;
	}else if(isNewsletterEmail(strEmailID.value) == false){
	return false;
	}
	
return true;
}