// JavaScript Document



function changeText(target) {              
		
		 if (target == 'email_field') {
			if ( document.getElementById('email_field').value == 'e-mail' ) {
					document.getElementById('email_field').value = '';
			} else if ( document.getElementById('email_field').value == '' ) {
					document.getElementById('email_field').value = 'e-mail';
			}
		}	   
}


function validate_newsletter(){
	
	if ($('#email_field').val() == '' || $('#email_field').val() == 'e-mail' ){
		return false;
	} else {
		document.newsletter_form.submit();		
	}	
	
}