fabrykant

$(document).click(function(e) {
    var $target = $(e.target);
    if ($target.hasClass('menu-item-search') || $target.hasClass('glyphicon-remove')) {
      $('.jqeury-test-form').slideToggle(200);
    } else if(!$target.parents("div").hasClass('jqeury-test-form')) {
      $('.jqeury-test-form').slideUp(200)
    }
  });

<form id="search" method="get" action="/search">
<div class="block">
<select id="number" class="span3" name="number">
 <option value="0">Выбрать</option>
 <option value="1">Первый</option>
 <option value="2">Второй</option>
</select>
</div>
<div class="block">
<select id="textID" class="span3" name="textID">
 <option value="0">Выбрать</option>
 <option value="11">Да</option>
 <option value="12">Нет</option>
</select>
</div>
<button id="btn" value="Submit">ответить</button>
</form>

if($("#textID").val() == 0){
  $("#btn").attr("disabled", "disabled");
}
$("#textID").on("change", function(){
  if($("#textID").val() == 0){
  $("#btn").attr("disabled", "disabled");
}else{
  $("#btn").removeAttr("disabled");
}
$("#btn").on("click", function(){
   alert('ответ');
 })
})

function toster (){
        for (i=0; i<=20; i++){
            $.get('a#'+i,function(data){
                $('tabe').append('<tr><td><a class="link" title="'+data.text()+'"></a></td></tr>')
            })
        }
    }

$("tabe").on( "click", "a.link", function() {
  console.log( $( this ).index() );
});