下拉菜单3

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  var g_arrResType = [["华语音乐","欧美音乐","日韩音乐","流行MTV","其它音乐"],
["视频短片","精彩电影","电视剧集","卡通动漫","体育节目","综艺节目","相声小品","Flash短片","电影片花"],
["网络游戏","单机游戏","游戏视频","Flash游戏","游戏补丁","掌上游戏"],
["系统工具","网络软件","应用软件","影音媒体","病毒防治","硬件驱动","其它软件"],
["外语教材","计算机类","网络小说","电子杂志","其它文档"],
["软件驱动","手机电影","手机游戏","铃声音乐","手机书籍"]];  
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if(type==1)                           
var strUrl = "http://pstatic.xunlei.com/channel2/column"+(i+1)+"/list_"+2+"_"+(i+1)+"_1.htm";                  
else if(type==2)                           
var strUrl = "http://pstatic.xunlei.com/channel1/column"+(i+1)+"/list_"+1+"_"+(i+1)+"_1.htm";                  
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var strUrl = "http://pstatic.xunlei.com/channel"+type+"/column"+(i+1)+"/list_"+type+"_"+(i+1)+"_1.htm";                          
strUrl = "JavaScript:OpenPortalPage(\"" + strUrl + "\")";                  
sHTML += "<a href='" + strUrl + "' class='xtitle'>" + g_arrResType[type-1][i] + "</a> ";          
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document.getElementById("sub").innerHTML = sHTML;  
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<td id="td1" class="nav_normal" width="40" height="23"><a class="xtitle" onmouseover="showSubType(1)" href="JavaScript:OpenPortalPage('http://pstatic.xunlei.com/channel2/index.htm')">音乐</a></td>
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<td id="td2" class="nav_normal" width="40"><a class="xtitle" onmouseover="showSubType(2)" href="JavaScript:OpenPortalPage('http://pstatic.xunlei.com/channel1/index.htm')">影视</a></td>
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<td id="td3" class="nav_normal" width="40"><a class="xtitle" onmouseover="showSubType(3)" href="JavaScript:OpenPortalPage('http://pstatic.xunlei.com/channel3/index.htm')">游戏</a></td>
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<td id="td4" class="nav_normal" width="40"><a class="xtitle" onmouseover="showSubType(4)" href="JavaScript:OpenPortalPage('http://pstatic.xunlei.com/channel4/index.htm')">软件</a></td>
<td class="nav_normal" width="10">|</td>
<td id="td5" class="nav_normal" width="40"><a class="xtitle" onmouseover="showSubType(5)" href="JavaScript:OpenPortalPage('http://pstatic.xunlei.com/channel5/index.htm')">书籍</a></td>
<td class="nav_normal" width="10">|</td>
<td id="td6" class="nav_normal" width="40"><a class="xtitle" onmouseover="showSubType(6)" href="JavaScript:OpenPortalPage('http://pstatic.xunlei.com/channel6/index.htm')">手机</a></td>
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