function removeText(inputId, fieldText) {
	 if (document.getElementById(inputId).value == fieldText)
	 {
	   	 document.getElementById(inputId).value = '';
	 }
}

function updNBg(){
document.getElementById('newsletterEmail').value = '';
return true;
}

function validate_newsletter_signup() {
	var em = document.newsletter_signup.df_tb_email.value;
	if(!em || (em.indexOf('@') < 1) || (em.indexOf('.') < 3)){
		alert('Please enter a valid email address');
		return false;
	}
	return true;
}

function removeText(inputId, fieldText) {
	 if (document.getElementById(inputId).value == fieldText)
	 {
	   	 document.getElementById(inputId).value = '';
	 }
}
<!--
function HideContent(d) {
if(d.length < 1) { return; }
document.getElementById(d).style.display = "none";
}
function ShowContent(d) {
if(d.length < 1) { return; }
document.getElementById(d).style.display = "block";
}
function ReverseContentDisplay(d) {
if(d.length < 1) { return; }
if(document.getElementById(d).style.display == "none") { document.getElementById(d).style.display = "block"; }
else { document.getElementById(d).style.display = "none"; }
}
//-->
function removeText(inputId, fieldText) {
	 if (document.getElementById(inputId).value == fieldText)
	 {
	   	 document.getElementById(inputId).value = '';
	 }
}

	//<!--
	function validate_login_form()
	{
		if(document.login_form.username.value=='' | document.login_form.username.value=='enter name here')
		{
			alert("You must enter your username");
			return false;
		}
		
		if(document.login_form.password.value=='' | document.login_form.password.value=='enter password here')
		{
			alert("You must enter your password");
			return false;
		}
		
		return true;
	}
	//-->