function set_hidden_value(field,val) {
	document.getElementById(field).value = val;
}

function disableEnterKey(e) {
     var key;
     if(window.event)
          key = window.event.keyCode;     //IE
     else
          key = e.which;     //firefox

     if(key == 13)
          return false;
     else
          return true;
}

function hide_zip_div(val,field) {
	if(val == 2) {
		document.getElementById(field).style.display = 'none';
	} else {
		document.getElementById(field).style.display = '';
	}
}