function emptyTxtBox(id)
{
    if(document.getElementById(id).value == "Enter e-mail address"){
        document.getElementById(id).value="";
    }
}
function fillIt(id)
{
    if(document.getElementById(id).value == ""){
        document.getElementById(id).value = "Enter e-mail address";
    }
}
function ValidateReceiveNews()
{
	ctr=document.ReceiveNews;
	emsg='';
	if(document.ReceiveNews.email_top.value!='')
	{
		if(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(document.ReceiveNews.email_top.value))
		{
			emsg = "";
		}
		else
		{
			emsg = emsg + "\nInvalid e-mail address! please re-enter."
		}
	}
	else
	{
		emsg = emsg + "\nPlease enter e-mail address!"
	}
	if(emsg !=''){
		emsg = "Following errors occurred during submission" + emsg;
		alert(emsg)
		return false;
	}
}