var kw;
    var var1;
    var var2;
    String.prototype.Trim = function() {
        return this.replace(/(^s*)|(s*$)/g, "");
    }   
    function onkeyd() {
        if(event.which || event.keyCode){
            if ((event.which == 13) || (event.keyCode == 13)) {
                document.getElementById("img2").click();
                return false;
            }
        } 
        else {  
            return true
        };
    }
    function img2_onclick() {  
        kw = document.getElementById("txtsearch2").value.Trim();        
        if(kw == "" || kw == "请输入搜索关键字！") {
            alert("请输入搜索关键字！");  
        }
        else {
            window.open('Find_' + encodeURI(kw) + '.html',target='_blank');
        }        
    }
    function CheckOrigin(){
        var1 = document.getElementById("txtsearch2");  
          var1.value=var1.value=="请输入搜索关键字！"?"":var1.value;  
    }
    function CheckEmpty(){
        var2=document.getElementById("txtsearch2");
        var2.value = var2.value==""?"请输入搜索关键字！":var2.value;
    }