总是报错,似乎无法选取对象,急死了,求助!!!
<script type="text/javascript" src="jsFile/jquery-1.4.2.min.js"></script>
    <script type="text/javascript"> 
 $(document).ready(function(){
$("#searchSubmit").click(function(){ /*此句报“null为空或不是对象”*/
if($("#SearchKeyWord").val()==""){ /*此句也会报“null为空或不是对象”,不过后来又不报了*/
alert("请输入要查找的内容!");
return;
}
document.location="reseach.aspx?key="+$("#SearchKeyWord").val();
    }); 

});  
</script>
      <div id='myDivImgLinkSearch'>
<IMG hspace=0 src="skin/images/znss1.gif">
                            <input id="SearchKeyWord" size=12 name="SearchKeyWord">
                            <IMG style="CURSOR: hand" id="searchSubmit" border=0 align=absMiddle src="skin/images/button-search.gif" width=47 height=20>
      </div>