function moveOnMax(field,nextFieldID){
  var nextField = document.getElementById(nextFieldID);
  if(field.value.length >= field.maxLength && nextField.value == ''){
    nextField.focus();
  }
}

function js_on_enter(e)  // Takes event instance and js function as params  
{  
	
	if(window.event) // IE
  		{
  			keynum = e.keyCode;
  		}
		else if(e.which) // Netscape/Firefox/Opera
  		{
  			keynum = e.which;
  		}
	
    
    if (keynum == '13') {  
     validateRecaptcha();
     return false;  
    }  

  return true;  
}