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


function validateHeaderFields()
{
    
	msg_header='';
	focusto_header='';
	if(document.getElementById('form_header_email').value == '' || document.getElementById('form_header_email').value == 'JOIN OUR EMAIL LIST')
	{
		msg_header='The Email field is required.';
		focusto_header='form_header_email';
	} else {
		if (!isValidEmail(document.getElementById('form_header_email').value)) 
   		{ 
		  msg_header='The Email field is required.';
		  focusto_header='form_header_email';
		  } 
	}
		
	if(msg_header=='')
	{
		return true;
	}else{
		document.getElementById('error_header_form').innerHTML = ' Valid Email required.';
		document.getElementById(focusto_header).value = '';
		document.getElementById(focusto_header).focus();
		return false;
	}


}