非常不错的一个javascript 类

非常不错的一个javascript 类

/*   
 *  Author:aoao 
 *    Homepage:http://www.loaoao.com 
 *  Email:[e-mail] / QQ:2222342 
 *  Copyright (c) 2006 aoao 
 *  Licensed under a Creative Commons Attribution 2.5 License (http://creativecommons.org/licenses/by/2.5/)  
 */ var jscc = new Object(); 
var loaoao = new Object();//^_^// 
jscc = {     
    init:function(){/*_*/}, 
    path:"/scripts/jscc/", 
    include:function (file){ 
        var j=document.createElement("script"); 
        j.setAttribute('type','text/javascript'); 
        j.setAttribute('src',jscc.path+file+'.js'); 
        document.getElementsByTagName("head")[0].appendChild(j); 
    } 
}; 
jscc.addEvent = function( obj, type, fn ) { 
    if ( obj.attachEvent ) {         
      obj['e'+type+fn] = fn; 
      obj[type+fn] = function(){obj['e'+type+fn]( window.event );} 
      obj.attachEvent( 'on'+type, obj[type+fn] ); 
    } else { 
      obj.addEventListener( type, fn, false ); 
    } 
}; 
// Cookies 
jscc.cookie = { 
    create:function (name,value,days) { 
      if (days) { 
        var date = new Date(); 
        date.setTime(date.getTime()+(days*24*60*60*1000)); 
        var expires = "; expires="+date.toGMTString(); 
      } 
      else expires = ""; 
      document.cookie = name+"="+value+expires+"; path=/"; 
    }, 
    read:function(name) { 
      var nameEQ = name + "="; 
      var ca = document.cookie.split(';'); 
      for(var i=0;i < ca.length;i++) { 
        var c = ca[i]; 
        while (c.charAt(0)==' ') c = c.substring(1,c.length); 
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length); 
      } 
      return null; 
    } 
}; 

jscc.getPageSize=function(){ 
    // reference lightbox (http://www.huddletogether.com/projects/lightbox/lightbox.js) 
     var theWidth,theHeight; 
    if (window.innerHeight&&window.scrollMaxY) { 
        theWidth = window.innerWidth; 
        theHeight = window.innerHeight+ window.scrollMaxY; 
     }  
    else if (document.body){ 
        theWidth=((document.body.scrollWidth > document.body.offsetWidth)?document.body.scrollWidth : document.body.offsetWidth ); 
        theHeight=((document.body.scrollHeight > document.body.offsetHeight)?document.body.scrollHeight  : document.body.offsetHeight ); 
    } 
    var winWidth ,winHeight;  
    if (self.innerHeight) {     
        winWidth = self.innerWidth; 
        winHeight = self.innerHeight; 
    } else if (document.documentElement && document.documentElement.clientHeight) { 
        winWidth = document.documentElement.clientWidth; 
        winHeight = document.documentElement.clientHeight; 
    } else if (document.body) { 
        winWidth = document.body.clientWidth; 
        winHeight = document.body.clientHeight; 
    } 
    var pWidth=(theWidth>winWidth?theWidth:winWidth) 
    var pHeight=(theHeight>winHeight?theHeight:winHeight) 
    var yScroll; 
    if (self.pageYOffset) { 
        yScroll = self.pageYOffset; 
    } else if (document.documentElement && document.documentElement.scrollTop){     // Explorer 6 Strict 
        yScroll = document.documentElement.scrollTop; 
    } else if (document.body) {// all other Explorers 
        yScroll = document.body.scrollTop; 
    } 
    var getPageSize = new Array(pWidth,pHeight,winWidth,winHeight,yScroll)  
    return getPageSize; 
} 

jscc.widgets = {/**/}; 
jscc.widgets.fixedsidebar = { 
    fixedHeight:0, 
    oldScrolltop:0, 
    init: function(){ 
        if (!document.getElementById("sidebar")) return; 
        jscc.addEvent(window,"scroll",function(e){jscc.widgets.fixedsidebar.setFixed()}); 
        jscc.addEvent(window,"resize",function(e){jscc.widgets.fixedsidebar.setFixed()}); 
        this.fixedHeight=document.getElementById("sidebar").offsetTop; 
        this.setFixed(); 
    }, 
    setFixed:function(){ 
        var sidebar=document.getElementById("sidebar"); 
        var ref=document.getElementById("main"); 
        var s_t=sidebar.offsetTop; 
        var s_h=sidebar.offsetHeight; 
        var s_th=s_t+s_h; 
        var r_th=ref.offsetTop+ref.offsetHeight; 
        var d_st; 
        if(document.documentElement.scrollTop){ 
            d_st=document.documentElement.scrollTop; 
        } 
        else{ 
            d_st=document.body.scrollTop 
            } 
        if(r_th>(s_t+s_h)){ 
            var seHeight=0;  
            if (self.innerHeight) {    seHeight = self.innerHeight;} else if (document.documentElement && document.documentElement.clientHeight) {    seHeight = document.documentElement.clientHeight;} else if (document.body) {seHeight = document.body.clientHeight;} 
            try{ 
                if(seHeight>s_h){ 
                    var newtop=(d_st<this.fixedHeight?0:d_st-this.fixedHeight-42); 
                } 
                else{ 
                // Thank you dron (http://www.ucren.com/) 
                switch (d_st-this.oldScrolltop>0) 
                    { 
                    case true: 
                        if (d_st-this.fixedHeight > s_t -seHeight){ 
                        var    newtop= d_st -this.fixedHeight - (s_h-seHeight)-68; 
                        } 
                    break; 
                    case false: 
                        if (d_st-this.fixedHeight<parseInt(sidebar.style.marginTop,10)){ 
                        var newtop= d_st-this.fixedHeight; 
                        } 
                    break; 
                    } 
                } 
                this.oldScrolltop = d_st; 
                if(newtop==undefined){ return;}; 
                newtop=(newtop<0?0:newtop); 
                sidebar.style.marginTop= newtop+"px"; 
            } 
            catch(e){ 
              //alert(e.description); 
            } 
        } 
        else{ 
            sidebar.style.marginTop="0px"; 
        } 
    }     
}; 
//jscc.addEvent(window,"load",function(e){jscc.widgets.fixedsidebar.init()}); 
jscc.widgets.wraphandler = { 
    //jscc.widgets.wraphandler reference http://www.collylogic.com/includes/resizer.js (http://www.collylogic.com/?/comments/redesign-notes-1-width-based-layout/) 
    init: function() {     
        //if (!document.getElementById) return; 
            if( document.getElementById('wrapper').className=="col3"){     
            jscc.wraphandler.setWrapper(); 
            jscc.addEvent(window,"resize",jscc.wraphandler.setWrapper); 
            } 
            else{return} 
      }, 
      setWrapper: function() { 
       var getPS=jscc.getPageSize(); 
       var _width=getPS[2]; 
          if (_width < 940) { 
            document.getElementById('wrapper').className = 'col2'; 
          } else { 
            document.getElementById('wrapper').className = 'col3'; 
          } 
          if(document.all) { 
            if (_width < 780) { 
            document.getElementById('wrapper').style.width="750px" 
              } else { 
                document.getElementById('wrapper').style.width="auto" 
              }               
          } 
      } 
}; 
//jscc.addEvent(window,"load",function(e){jscc.widgets.wraphandler.init()}); 

jscc.widgets.styleSwitcher = { 
    // jscc.widgets.styleSwitcher  reference StyleSwitcher functions( written by Paul Sowden http://www.idontsmoke.co.uk/ss/ . For the details, visit ALA: http://www.alistapart.com/stories/alternate/) 
    init:function(e) { 
        var cookie = jscc.cookie.read("style"); 
        var title = cookie ? cookie : this.getPreferred(); 
        title = (title==null?"left":title); 
        this.setActive(title); 
        var operactioner = document.getElementById("themes").getElementsByTagName("A"); 
    operactioner[0].onclick=function() { 
        jscc.widgets.styleSwitcher.setActive("left"); 
        return false; 
    }; 
    operactioner[1].onclick=function() { 
        jscc.widgets.styleSwitcher.setActive("right"); 
        return false; 
    }; 
    this.switcher(title); 
    }, 
    setActive:function(title){ 
        var i, a, main; 
          for(i=0; (a = document.getElementsByTagName("link")[i]); i++) { 
        if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) { 
                a.disabled = true; 
                if(a.getAttribute("title") == title) a.disabled = false; 
            } 
        } 
        this.switcher(title); 
        //jscc.cookie.create("style", title,"365");     
    }, 
    getActive:function(){ 
    var i, a; 
    for(i=0; (a = document.getElementsByTagName("link")[i]); i++) { 
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");} 
      return null; 
    }, 
    getPreferred:function (){ 
      var i, a; 
      for(i=0; (a = document.getElementsByTagName("link")[i]); i++) { 
        if(a.getAttribute("rel").indexOf("style") != -1 
           && a.getAttribute("rel").indexOf("alt") == -1 
           && a.getAttribute("title") 
           ) return a.getAttribute("title"); 
      } 
      return null; 
    }, 
    switcher:function(theme){ 
        if(!document.getElementById(["theme_"+theme])) { return;} 
        var notheme=(theme=="left"?"right":"left"); 
        document.getElementById(["theme_"+notheme]).style.display="inline"; 
        document.getElementById(["theme_"+theme]).style.display="none"; 
    }, 
    end:function(e){ 
      var title = this.getActive(); 
      jscc.cookie.create("style", title,"365"); 
    } 
}; 
//jscc.addEvent(window,"load",function(e){jscc.widgets.styleSwitcher.init()}); 
jscc.addEvent(window,"unload",function(e){jscc.widgets.styleSwitcher.end()}); 
jscc.widgets.toTop = { 
    init:function(){ 
        document.getElementById("toTop").onclick=function(e){ 
            jscc.widgets.toTop.set(); 
            return false; 
        }         
    }, 
    waitTimer:null, 
    set:function(){ 
        var d_st=document.documentElement.scrollTop; 
        if(window.navigator.userAgent.indexOf("MSIE")>=1){ 
            for (var i=d_st; i>10; i-=Math.floor(i/6)){ 
            window.scrollTo(0,i); 
            } 
            window.scrollTo(0,10); 
        } 
        else{ 
        window.scrollTo(0,Math.floor(d_st / 2)); 
         if(d_st>10){ 
                 waitTimer=setTimeout("jscc.widgets.toTop.set()",20); 
          } 
            else{ 
                  clearTimeout(waitTimer); 
            } 
        } 
    } 
} 
jscc.api={ 
    google:{ 
        init:function(){ 
        try{ 
            var searchControl = new GSearchControl(); 
        } 
            catch(e){ 
             return; 
            } 
        var options = new GdrawOptions(); 
        options.setSearchFormRoot(document.getElementById("googleSearchForm")); 
        options.setDrawMode(GSearchControl.DRAW_MODE_TABBED); 
         searchControl.setLinkTarget(GSearch.LINK_TARGET_SELF); 
        searchControl.setResultSetSize(GSearch.LARGE_RESULTSET); 
        var siteSearch = new GwebSearch(); 
        siteSearch.setUserDefinedLabel("站内搜索"); 
        siteSearch.setUserDefinedClassSuffix("siteSearch"); 
        siteSearch.setSiteRestriction("www.loaoao.com"); 
        searchControl.addSearcher(siteSearch); 
        var labSearch = new GwebSearch(); 
        labSearch.setUserDefinedLabel("嗷嗷的实验室搜索"); 
        labSearch.setUserDefinedClassSuffix("labSearch"); 
        labSearch.setSiteRestriction("lab.loaoao.com"); 
        searchControl.addSearcher(labSearch); 
        var wwwSearch = new GwebSearch(); 
        wwwSearch.setUserDefinedLabel("Google搜索"); 
        labSearch.setUserDefinedClassSuffix("wwwSearch"); 
        searchControl.addSearcher(wwwSearch); 
        searchControl.draw(document.getElementById("googleSearchResults"), options); 
        //    searchControl.execute("css"); 
        } 
    } 
} 
loaoao.com = function(){ 
    if (!document.getElementById) return; 
    jscc.widgets.styleSwitcher.init(); 
    jscc.widgets.fixedsidebar.init(); 
    jscc.widgets.toTop.init();     
    jscc.api.google.init();     

}; 
jscc.addEvent(window,"load",loaoao.com);