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          Web 2.0 技術儲備............

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          <!--
          if(
          window . Event ){ //?修正Event的DOM
          ????/*
          ????????????????????????????????IE5????????MacIE5????????Mozilla????????Konqueror2.2????????Opera5
          ????event????????????????????????yes????????yes????????????yes????????????yes????????????????????yes
          ????event.returnValue????????????yes????????yes????????????no????????????no????????????????????no
          ????event.cancelBubble????????????yes????????yes????????????no????????????no????????????????????no
          ????event.srcElement????????????yes????????yes????????????no????????????no????????????????????no
          ????event.fromElement????????????yes????????yes????????????no????????????no????????????????????no
          ????
          ????*/
          ????
          Event . prototype . __defineSetter__ ( "returnValue" ,function( b ){ //?
          ????????
          if(! b ) this . preventDefault ();
          ????????return?
          b ;
          ????????});
          ????
          Event . prototype . __defineSetter__ ( "cancelBubble" ,function( b ){ //?設置或者檢索當前事件句柄的層次冒泡
          ????????
          if( b ) this . stopPropagation ();
          ????????return?
          b ;
          ????????});
          ????
          Event . prototype . __defineGetter__ ( "srcElement" ,function(){
          ????????var?
          node = this . target ;
          ????????while(
          node . nodeType != 1 ) node = node . parentNode ;
          ????????return?
          node ;
          ????????});
          ????
          Event . prototype . __defineGetter__ ( "fromElement" ,function(){ //?返回鼠標移出的源節(jié)點
          ????????
          var? node ;
          ????????if(
          this . type == "mouseover" )
          ????????????
          node = this . relatedTarget ;
          ????????else?if(
          this . type == "mouseout" )
          ????????????
          node = this . target ;
          ????????if(!
          node )return;
          ????????while(
          node . nodeType != 1 ) node = node . parentNode ;
          ????????return?
          node ;
          ????????});
          ????
          Event . prototype . __defineGetter__ ( "toElement" ,function(){ //?返回鼠標移入的源節(jié)點
          ????????
          var? node ;
          ????????if(
          this . type == "mouseout" )
          ????????????
          node = this . relatedTarget ;
          ????????else?if(
          this . type == "mouseover" )
          ????????????
          node = this . target ;
          ????????if(!
          node )return;
          ????????while(
          node . nodeType != 1 ) node = node . parentNode ;
          ????????return?
          node ;
          ????????});
          ????
          Event . prototype . __defineGetter__ ( "offsetX" ,function(){
          ????????return?
          this . layerX ;
          ????????});
          ????
          Event . prototype . __defineGetter__ ( "offsetY" ,function(){
          ????????return?
          this . layerY ;
          ????????});
          ????}
          if(
          window . Document ){ //?修正Document的DOM
          ????/*
          ????????????????????????????????IE5????????MacIE5????????Mozilla????????Konqueror2.2????????Opera5
          ????document.documentElement????yes????????yes????????????yes????????????yes????????????????????no
          ????document.activeElement????????yes????????null????????no????????????no????????????????????no
          ????
          ????*/
          ????
          }
          if(
          window . Node ){ //?修正Node的DOM
          ????/*
          ????????????????????????????????IE5????????MacIE5????????Mozilla????????Konqueror2.2????????Opera5
          ????Node.contains????????????????yes????????yes????????????no????????????no????????????????????yes
          ????Node.replaceNode????????????yes????????no????????????no????????????no????????????????????no
          ????Node.removeNode????????????????yes????????no????????????no????????????no????????????????????no
          ????Node.children????????????????yes????????yes????????????no????????????no????????????????????no
          ????Node.hasChildNodes????????????yes????????yes????????????yes????????????yes????????????????????no
          ????Node.childNodes????????????????yes????????yes????????????yes????????????yes????????????????????no
          ????Node.swapNode????????????????yes????????no????????????no????????????no????????????????????no
          ????Node.currentStyle????????????yes????????yes????????????no????????????no????????????????????no
          ????
          ????*/
          ????
          Node . prototype . replaceNode =function( Node ){ //?替換指定節(jié)點
          ????????
          this . parentNode . replaceChild ( Node , this );
          ????????}
          ????
          Node . prototype . removeNode =function( removeChildren ){ //?刪除指定節(jié)點
          ????????
          if( removeChildren )
          ????????????return?
          this . parentNode . removeChild ( this );
          ????????else{
          ????????????var?
          range = document . createRange ();
          ????????????
          range . selectNodeContents ( this );
          ????????????return?
          this . parentNode . replaceChild ( range . extractContents (), this );
          ????????????}
          ????????}
          ????
          Node . prototype . swapNode =function( Node ){ //?交換節(jié)點
          ????????
          var? nextSibling = this . nextSibling ;
          ????????var?
          parentNode = this . parentNode ;
          ????????
          node . parentNode . replaceChild ( this , Node );
          ????????
          parentNode . insertBefore ( node , nextSibling );
          ????????}
          ????}
          if(
          window . HTMLElement ){
          ????
          HTMLElement . prototype . __defineGetter__ ( "all" ,function(){
          ????????var?
          a = this . getElementsByTagName ( "*" );
          ????????var?
          node = this ;
          ????????
          a . tags =function( sTagName ){
          ????????????return?
          node . getElementsByTagName ( sTagName );
          ????????????}
          ????????return?
          a ;
          ????????});
          ????
          HTMLElement . prototype . __defineGetter__ ( "parentElement" ,function(){
          ????????if(
          this . parentNode == this . ownerDocument )return? null ;
          ????????return?
          this . parentNode ;
          ????????});
          ????
          HTMLElement . prototype . __defineGetter__ ( "children" ,function(){
          ????????var?
          tmp =[];
          ????????var?
          j = 0 ;
          ????????var?
          n ;
          ????????for(var?
          i = 0 ; i < this . childNodes . length ; i ++){
          ????????????
          n = this . childNodes [ i ];
          ????????????if(
          n . nodeType == 1 ){
          ????????????????
          tmp [ j ++]= n ;
          ????????????????if(
          n . name ){
          ????????????????????if(!
          tmp [ n . name ])
          ????????????????????????
          tmp [ n . name ]=[];
          ????????????????????
          tmp [ n . name ][ tmp [ n . name ]. length ]= n ;
          ????????????????????}
          ????????????????if(
          n . id )
          ????????????????????
          tmp [ n . id ]= n ;
          ????????????????}
          ????????????}
          ????????return?
          tmp ;
          ????????});
          ????
          HTMLElement . prototype . __defineGetter__ ( "currentStyle" ,?function(){
          ????????return?
          this . ownerDocument . defaultView . getComputedStyle ( this , null );
          ????????});
          ????
          HTMLElement . prototype . __defineSetter__ ( "outerHTML" ,function( sHTML ){
          ????????var?
          r = this . ownerDocument . createRange ();
          ????????
          r . setStartBefore ( this );
          ????????var?
          df = r . createContextualFragment ( sHTML );
          ????????
          this . parentNode . replaceChild ( df , this );
          ????????return?
          sHTML ;
          ????????});
          ????
          HTMLElement . prototype . __defineGetter__ ( "outerHTML" ,function(){
          ????????var?
          attr ;
          ????????var?
          attrs = this . attributes ;
          ????????var?
          str = "<" + this . tagName ;
          ????????for(var?
          i = 0 ; i < attrs . length ; i ++){
          ????????????
          attr = attrs [ i ];
          ????????????if(
          attr . specified )
          ????????????????
          str += "?" + attr . name + '="' + attr . value + '"' ;
          ????????????}
          ????????if(!
          this . canHaveChildren )
          ????????????return?
          str + ">" ;
          ????????return?
          str + ">" + this . innerHTML + "</" + this . tagName + ">" ;
          ????????});
          ????
          HTMLElement . prototype . __defineGetter__ ( "canHaveChildren" ,function(){
          ????????switch(
          this . tagName . toLowerCase ()){
          ????????????case?
          "area" :
          ????????????case?
          "base" :
          ????????????case?
          "basefont" :
          ????????????case?
          "col" :
          ????????????case?
          "frame" :
          ????????????case?
          "hr" :
          ????????????case?
          "img" :
          ????????????case?
          "br" :
          ????????????case?
          "input" :
          ????????????case?
          "isindex" :
          ????????????case?
          "link" :
          ????????????case?
          "meta" :
          ????????????case?
          "param" :
          ????????????????return?
          false ;
          ????????????}
          ????????return?
          true ;
          ????????});

          ????
          HTMLElement . prototype . __defineSetter__ ( "innerText" ,function( sText ){
          ????????var?
          parsedText = document . createTextNode ( sText );
          ????????
          this . innerHTML = parsedText ;
          ????????return?
          parsedText ;
          ????????});
          ????
          HTMLElement . prototype . __defineGetter__ ( "innerText" ,function(){
          ????????var?
          r = this . ownerDocument . createRange ();
          ????????
          r . selectNodeContents ( this );
          ????????return?
          r . toString ();
          ????????});
          ????
          HTMLElement . prototype . __defineSetter__ ( "outerText" ,function( sText ){
          ????????var?
          parsedText = document . createTextNode ( sText );
          ????????
          this . outerHTML = parsedText ;
          ????????return?
          parsedText ;
          ????????});
          ????
          HTMLElement . prototype . __defineGetter__ ( "outerText" ,function(){
          ????????var?
          r = this . ownerDocument . createRange ();
          ????????
          r . selectNodeContents ( this );
          ????????return?
          r . toString ();
          ????????});
          ????
          HTMLElement . prototype . attachEvent =function( sType , fHandler ){
          ????????var?
          shortTypeName = sType . replace (/ on /, "" );
          ????????
          fHandler . _ieEmuEventHandler =function( e ){
          ????????????
          window . event = e ;
          ????????????return?
          fHandler ();
          ????????????}
          ????????
          this . addEventListener ( shortTypeName , fHandler . _ieEmuEventHandler , false );
          ????????}
          ????
          HTMLElement . prototype . detachEvent =function( sType , fHandler ){
          ????????var?
          shortTypeName = sType . replace (/ on /, "" );
          ????????if(
          typeof ( fHandler . _ieEmuEventHandler )== "function" )
          ????????????
          this . removeEventListener ( shortTypeName , fHandler . _ieEmuEventHandler , false );
          ????????else
          ????????????
          this . removeEventListener ( shortTypeName , fHandler , true );
          ????????}
          ????
          HTMLElement . prototype . contains =function( Node ){ //?是否包含某節(jié)點
          ????????
          do?if( Node == this )return? true ;
          ????????while(
          Node = Node . parentNode );
          ????????return?
          false ;
          ????????}
          ????
          HTMLElement . prototype . insertAdjacentElement =function( where , parsedNode ){
          ????????switch(
          where ){
          ????????????case?
          "beforeBegin" :
          ????????????????
          this . parentNode . insertBefore ( parsedNode , this );
          ????????????????break;
          ????????????case?
          "afterBegin" :
          ????????????????
          this . insertBefore ( parsedNode , this . firstChild );
          ????????????????break;
          ????????????case?
          "beforeEnd" :
          ????????????????
          this . appendChild ( parsedNode );
          ????????????????break;
          ????????????case?
          "afterEnd" :
          ????????????????if(
          this . nextSibling )
          ????????????????????
          this . parentNode . insertBefore ( parsedNode , this . nextSibling );
          ????????????????else
          ????????????????????
          this . parentNode . appendChild ( parsedNode );
          ????????????????break;
          ????????????}
          ????????}
          ????
          HTMLElement . prototype . insertAdjacentHTML =function( where , htmlStr ){
          ????????var?
          r = this . ownerDocument . createRange ();
          ????????
          r . setStartBefore ( this );
          ????????var?
          parsedHTML = r . createContextualFragment ( htmlStr );
          ????????
          this . insertAdjacentElement ( where , parsedHTML );
          ????????}
          ????
          HTMLElement . prototype . insertAdjacentText =function( where , txtStr ){
          ????????var?
          parsedText = document . createTextNode ( txtStr );
          ????????
          this . insertAdjacentElement ( where , parsedText );
          ????????}
          ????
          HTMLElement . prototype . attachEvent =function( sType , fHandler ){
          ????????var?
          shortTypeName = sType . replace (/ on /, "" );
          ????????
          fHandler . _ieEmuEventHandler =function( e ){
          ????????????
          window . event = e ;
          ????????????return?
          fHandler ();
          ????????????}
          ????????
          this . addEventListener ( shortTypeName , fHandler . _ieEmuEventHandler , false );
          ????????}
          ????
          HTMLElement . prototype . detachEvent =function( sType , fHandler ){
          ????????var?
          shortTypeName = sType . replace (/ on /, "" );
          ????????if(
          typeof ( fHandler . _ieEmuEventHandler )== "function" )
          ????????????
          this . removeEventListener ( shortTypeName , fHandler . _ieEmuEventHandler , false );
          ????????else
          ????????????
          this . removeEventListener ( shortTypeName , fHandler , true );
          ????????}
          ????}
          //-->
          </script>
          posted on 2006-10-28 00:07 Web 2.0 技術資源 閱讀(258) 評論(0)  編輯  收藏

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