randomad.js

动网论坛系列产品倍受用户赞誉的就是强大的功能和出色的用户体验表现

var items = null;
var ie = null;
function loadXML(xmlFile)
{
    var xmlDoc;
    if(window.ActiveXObject)
    {
		ie = true;
        xmlDoc    = new ActiveXObject('Microsoft.XMLDOM');
        xmlDoc.async    = false;
        xmlDoc.load(xmlFile);
    }
    else if (document.implementation&&document.implementation.createDocument)
    {
		ie = false;
        xmlDoc    = document.implementation.createDocument('', '', null);
        xmlDoc.load(xmlFile);
		xmlDoc.async    = false;
		xmlDoc.readyState = 4;
    }
    else
    {
        return null;
    }
    
    return xmlDoc;
} 
function initRandomAD()
{
	var  xmlDoc = loadXML("/files/localfiles/randadvertise.xml");	
	if (xmlDoc == null)
		return;
	items = new Array();
	
	if (ie)
	{
		var notes = xmlDoc.getElementsByTagName("content");
		for (var i = 0; i < notes.length; i ++)
		{	
			items[i] = notes[i].text;
		}
	}
	else
	{
		
	
		alert(xmlDoc.getElementsByTagName('/randadvertise')[0].childNodes.length);
	
	}
	
}

initRandomAD();

function showRandomAD()
{ 
	if (items.length == 0) return;
    var rnd = Math.floor( Math.random() * (items.length - 1) );
    document.write( items[rnd] );
}