求助高手

[sidneygo]

function toajax(a,b,c,d,e){
if (t!="" && b!=""){
var ginfo = "";
var ajax = InitAjax();
ajax.open("POST",b+"Se/Se.Ajax.asp" , true);
ajax.setRequestHeader("CONTENT-TYPE","application/x-www-form-urlencoded; charset=GB2312");
ajax.send("Action=SearchJingjia&Key="+escape(a)+"&Type="+c+"&ClsID="+d+"&ArID="+e);
ajax.onreadystatechange = function(){
if (ajax.readyState == 4){info = ajax.responseText;
if(ginfo!=""){document.getElementById("Jajax").innerHTML = ginfo;}else{document.getElementById("Jajax").innerHTML = "";}
}
}
}
}

(1) <script>toajax('有值','/"',2,1,1)</script>

(2) <script>toajax('','/"',2,1,1)</script>
以上代码中：(1)当a不为空是此代码返回正常，(2)当a为空值则ginfo为空!

哪位高手指点下！谢谢！

[斯洛文尼亚旅游]

不知道你发错还是什么，ginfo你就只定义过一次并且赋值为空，其他代码并未见你重新设置过ginfo变量

ajax.onreadystatechange = function(){ 
  if (ajax.readyState == 4){info = ajax.responseText; //这里是否是设置ginfo变量？？你设置错了
  if(ginfo!=""){document.getElementById("Jajax").innerHTML = ginfo;}else{document.getElementById("Jajax").innerHTML = "";} 

[sidneygo]

是我发错了，谢谢！

function toajax(a,b,c,d,e){
if (t!="" && b!=""){
var ginfo = "";
var ajax = InitAjax();
ajax.open("POST",b+"Se/Se.Ajax.asp" , true);
ajax.setRequestHeader("CONTENT-TYPE","application/x-www-form-urlencoded; charset=GB2312");
ajax.send("Action=SearchJingjia&Key="+escape(a)+"&Type="+c+"&ClsID="+d+"&ArID="+e);
ajax.onreadystatechange = function(){
if (ajax.readyState == 4){ginfo = ajax.responseText;
if(ginfo!=""){document.getElementById("Jajax").innerHTML = ginfo;}else{document.getElementById("Jajax").innerHTML = "";}
}
}
}
}

[sidneygo]

function toajax(a,b,c,d,e){
if (c!="" && b!=""){
var ginfo = "";
var ajax = InitAjax();
ajax.open("POST",b+"Se/Se.Ajax.asp" , true);
ajax.setRequestHeader("CONTENT-TYPE","application/x-www-form-urlencoded; charset=GB2312");
ajax.send("Action=SearchJingjia&Key="+escape(a)+"&Type="+c+"&ClsID="+d+"&ArID="+e);
ajax.onreadystatechange = function(){
if (ajax.readyState == 4){ginfo = ajax.responseText;
if(ginfo!=""){document.getElementById("Jajax").innerHTML = ginfo;}else{document.getElementById("Jajax").innerHTML = "";}
}
}
}
}