function btn_click(){
    
    var keywords=$("#keywords").val();
    if(keywords.length==0)
    {
        alert("请输入关键字！");
        return;
    }
    //url
    var url="/info/search.aspx?keywords="+keywords;
    location.href(url);
}

//onkeyDown
 function SearchResumeKeyDown() {  
     if (event.keyCode == 13 || (!(event.shiftKey || event.altKey) && event.keyCode == 13 && event.ctrlKey))
     { btn_click();event.returnValue = false; }
}