javascript类功能代码集

/*
功能:鼠标放置不同DIV时显示不同的底色/底图,并还原先前图
lastDiv上一次作用的对象
initClass非作用对象的样式表
currentClass当前作用对象的样式表
lastContentDiv上一次作用对象对应的内容
*/
var _DivBgChange = function(lastDiv,initClass,currentClass,lastContentDiv){
 this.init = initClass;
 this.current = currentClass;
 this.lastDiv = lastDiv;
 this.lastContentDiv = lastContentDiv;
}
_DivBgChange.prototype = {
/*二种形式相互变换*/
 OverA : function(currentDiv,currentContentDiv){
  MM_findObj(this.lastDiv).className = this.init;
  MM_findObj(this.lastContentDiv).style.display = "none";
  MM_findObj(currentDiv).className = this.current;
  MM_findObj(currentContentDiv).style.display = "";
  this.lastDiv = currentDiv;
  this.lastContentDiv = currentContentDiv;
 },
/*四种形式相互变换*/
 OverB : function(currentDiv,otherDiv,currentContentDiv,currentImg,otherImg){  
  MM_findObj(currentDiv).style.background = "url(" + currentImg + ")";
  MM_findObj(this.lastContentDiv).style.display = "none";
  MM_findObj(otherDiv).style.background = "url(" + otherImg + ")";
  MM_findObj(currentContentDiv).style.display = "";
  this.lastDiv = currentDiv;
  this.lastContentDiv = currentContentDiv; 
 }
}

/*
功能:动态广告
*/
var _Ad1 = function(W,H){
    this.browser = window.ActiveXObject ? "IE" : "OTHER";
    this.focus_width = W;
    this.focus_height = H;
    this.text_height = 0;
    this.swf_height = this.focus_height + this.text_height;        
    this.texts = "";
    this.pics = "";
    this.links = "";
}
_Ad1.prototype = {
    AdShow : function(X){
        var xmlDoc = loadXML("/editor/xml/" + X + ".xml");
        var root = xmlDoc.getElementsByTagName("NewDataSet")[0];
        var tables = root.getElementsByTagName("table");
        var EndStr = "";        
        for(var i = 0;i < tables.length;i++)
        {
            i == tables.length-1 ? EndStr = "" : EndStr = "|";
            if(this.browser == "IE")
            {
                this.pics += tables[i].childNodes[0].firstChild.nodeValue + EndStr;
                this.links += tables[i].childNodes[1].firstChild.nodeValue + EndStr;
            }
            else
            {
                this.pics += tables[i].childNodes[1].firstChild.nodeValue + EndStr;
                this.links += tables[i].childNodes[3].firstChild.nodeValue + EndStr;
            }
        }
        document.write('<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" width="'+ this.focus_width +'" height="'+ this.swf_height +'">');
        document.write('<param name="allowScriptAccess" value="sameDomain"><param name="movie" value="/ad/focus.swf"> <param name="quality" value="high"><param name="bgcolor" value="#ffffff">');
        document.write('<param name="menu" value="false"><param name=wmode value="opaque">');
        document.write('<param name="FlashVars" value="pics='+this.pics+'&links='+this.links+'&texts='+this.texts+'&borderwidth='+this.focus_width+'&borderheight='+this.focus_height+'&textheight='+this.text_height+'">');
        document.write('<embed src="/ad/focus.swf" wmode="opaque" FlashVars="pics='+this.pics+'&links='+this.links+'&texts='+this.texts+'&borderwidth='+this.focus_width+'&borderheight='+this.focus_height+'&textheight='+this.text_height+'" menu="false" bgcolor="#ffffff" quality="high" width="'+ this.focus_width +'" height="'+ this.swf_height +'" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />'); 
        document.write('</object>');
    }
}