Blogger Tag Cloud/Label Cloud

在 ]]</b:skin> 之前加入以下 css
/* Label Cloud Styles
----------------------------------------------- */
#labelCloud {text-align:center;font-family:arial,sans-serif;}
#labelCloud .label-cloud li{display:inline;background-image:none !important;padding:0 5px;margin:0;vertical-align:baseline !important;border:0 !important;}
#labelCloud ul{list-style-type:none;margin:0 auto;padding:0;}
#labelCloud a img{border:0;display:inline;margin:0 0 0 3px;padding:0}
#labelCloud a{text-decoration:none}
#labelCloud a:hover{text-decoration:underline}
#labelCloud li a{}
#labelCloud .label-cloud {}
#labelCloud .label-count {padding-left:0.2em;font-size:9px;color:#000}
#labelCloud .label-cloud li:before{content:"" !important}

在 </head> 前加入以下 javascript
<script type='text/javascript'>
     // Label Cloud User Variables
     var cloudMin = 1;
     var maxFontSize = 20;
     var maxColor = [0,0,255];
     var minFontSize = 10;
     var minColor = [0,0,0];
     var lcShowCount = false;
</script>

找到 siderbar 加入以下的 widget
<b:widget id='Label1' locked='false' title='Label Cloud' type='Label'>
<b:includable id='main'> 
  <b:if cond='data:title'>
    <h2><data:title/></h2>
  </b:if>
  <div class='widget-content'>
  <div id='labelCloud'/>
    <script type='text/javascript'>
    // Don't change anything past this point -----------------
    // Cloud function s() ripped from del.icio.us
      function s(a,b,i,x){
        if(a&gt;b){ 
          var m=(a-b)/Math.log(x),v=a-Math.floor(Math.log(i)*m) 
        }
        else { 
          var m=(b-a)/Math.log(x),v=Math.floor(Math.log(i)*m+a) 
        }
        return v
      }  
     
      var c=[]; 
      var labelCount = new Array();  
      var ts = new Object;

      <b:loop values='data:labels' var='label'>
        var theName = &quot;<data:label.name/>&quot;;
        ts[theName] = <data:label.count/>; 
      </b:loop> 
     
      for (t in ts){
       if (!labelCount[ts[t]]){ 
         labelCount[ts[t]] = new Array(ts[t]) 
       } 
      }
     
      var ta=cloudMin-1; 
      tz = labelCount.length - cloudMin;
      lc2 = document.getElementById('labelCloud');
      ul = document.createElement('ul');
      ul.className = 'label-cloud';

      for(var t in ts){
        if(ts[t] &lt; cloudMin){
          continue;
        }
        for (var i=0;3 &gt; i;i++) { 
          c[i]=s(minColor[i],maxColor[i],ts[t]-ta,tz) 
        }       
        var fs = s(minFontSize,maxFontSize,ts[t]-ta,tz); 
        li = document.createElement('li'); 
        li.style.fontSize = fs+'px'; 
        li.style.lineHeight = '1'; 
        a = document.createElement('a'); 
        a.title = ts[t]+' Posts in '+t; 
        a.style.color = 'rgb('+c[0]+','+c[1]+','+c[2]+')'; 
        a.href = '/search/label/'+encodeURIComponent(t); 
        if (lcShowCount){ 
          span = document.createElement('span'); 
          span.innerHTML = '('+ts[t]+') '; 
          span.className = 'label-count'; 
          a.appendChild(document.createTextNode(t)); 
          li.appendChild(a); 
          li.appendChild(span); 
        } 
        else { 
          a.appendChild(document.createTextNode(t)); 
          li.appendChild(a); 
        } 
        ul.appendChild(li); 
        abnk = document.createTextNode(' '); 
        ul.appendChild(abnk); 
      }
      lc2.appendChild(ul);    
    </script>
    <noscript>
    <ul>
    <b:loop values='data:labels' var='label'>
      <li>
        <b:if cond='data:blog.url == data:label.url'>
          <data:label.name/>
        <b:else/>
          <a expr:href='data:label.url'><data:label.name/></a>
        </b:if>
        (<data:label.count/>)
      </li>
    </b:loop>
    </ul>
    </noscript>
    <b:include name='quickedit'/>
  </div>
</b:includable>
</b:widget>


參考資料：
http://phy3blog.googlepages.com/Beta-Blogger-Label-Cloud.html