恼人的问题,头疼很久了!各位大虾帮个忙~

[aganzi1111]

我写了个js代码:
如下:
var oDoc = new ActiveXObject("Msxml2.DOMDocument");
oDoc.async = false;
function RenderHtml(xmlPath,selectNode_Title,selectNode_Link,objShow,totalNum,titleNum)
{

var html = "";
oDoc.load(xmlPath);
oNodes = oDoc.selectNodes(selectNode_Title);
href = oDoc.selectNodes(selectNode_Link);
var num = totalNum<oNodes.length ? totalNum : oNodes.length;
var page=oNodes.length/totalNum;
for(var i=0;i<num;i++)
{
a=oNodes[i].text;
c=a.substr(0,titleNum);
html += "<a href=\"" + href[i].text + "\" target=_blank title=\""+c+"\">·领导：" +c+ "</a><br/>\n";
}
objShow.innerHTML=html
}
RenderHtml("xml/news/xylw/newsxml.xml","/news/xylw/item/title","/news/xylw/item/link",rrrr,10,10);
RenderHtml("xml/news/xylw/newsxml.xml","/news/xylw/item/title","/news/xylw/item/link",rrrr2,10,10);
RenderHtml("xml/news/xylw/newsxml.xml","/news/xylw/item/title","/news/xylw/item/link",rrrr3,10,10);
RenderHtml("xml/news/xylw/newsxml.xml","/news/xylw/item/title","/news/xylw/item/link",rrrr4,10,10);
RenderHtml("xml/news/xylw/newsxml.xml","/news/xylw/item/title","/news/xylw/item/link",rrrr5,10,10);

[aganzi1111]

定义rrrr~~rrrr5共5个名称!
用<div id="rrrr"></div>调用~~~~~~
如果我用<div id="rrrr"></div>调用的时候,rrrr标签名能正常显示!

可如果我用<div id="rrrr2"></div>调用rrrr2的标签的时候,没调用rrrr.确会出现rrrr未定义的错误.而导致不能执行!rrrr2对应的不能显示!

请问有什么好的解决方法没有?头疼死了~我对js还只是入门阶段!帮帮我~~~~~~~~

[aganzi1111]

如果只掉用一个,那其他的都会出现未定义错误!如果掉用第一个以下的,则第一个会出错.而什么都显示不出来!
除非全部同时调用出来才可以正常~而且只能在一个页面内!

[aganzi1111]

如果需要文件,我可以打包发!
qq:49094230
mail:[e-mail]
谢谢

[keystudio]

调用的时候验证一下是否存在

if(a!=null)
{
...
}

[linekery]

var oDoc = new ActiveXObject("Msxml2.DOMDocument");
oDoc.async = false;
function RenderHtml(xmlPath,selectNode_Title,selectNode_Link,objShow,totalNum,titleNum)
{
var div = document.getElementById(objShow);
if (div==null)
return;
var html = "";
oDoc.load(xmlPath);
oNodes = oDoc.selectNodes(selectNode_Title);
href = oDoc.selectNodes(selectNode_Link);
var num = totalNum<oNodes.length ? totalNum : oNodes.length;
var page=oNodes.length/totalNum;
for(var i=0;i<num;i++)
{
a=oNodes[i].text;
c=a.substr(0,titleNum);
html += "<a href=\"" + href[i].text + "\" target=_blank title=\""+c+"\">·领导："

+c+ "</a><br/>\n";
}
div.innerHTML=html;
}