var $ = function(id){return document.getElementById(id);}

var formSubmit = function(id){

document.forms[id].submit();

return false;

}

var tip = function(q, for_q){

q = $(q);

for_q = $(for_q);

q.onfocus = function(){

for_q.style.display = 'none';

q.style.backgroundPosition = "right -17px";

}

q.onblur = function(){

if(!this.value) for_q.style.display = 'block';

q.style.backgroundPosition = "right 0";

}

for_q.onclick = function(){

this.style.display = 'none';

q.focus();

}

};

tip('keyword','for-keyword');