div溢出内容

<div class="main">
    <div class="cotent">
    <form action="system/insertNewAction.action"   onclick="javaScript:lastIndexDemo();" method="post">
<div class="rowElem"><label>标题：</label><input type="text" name="news.ntitle"/></div>
        <div class="rowElem"><label>摘要:</label> <textarea cols="40" rows="5" name="news.nsumment"></textarea></div>
        <div class="rowElem"><label>内容：</label><textarea name="news.ncontent" cols="70" rows="10" id="keywords"></textarea></div>
        <div class="rowElem"><label>关键字个数：</label><input name="indesc" value="" id="indesc" type="text"/>
        <input type="button" onclick="javaScript:lastIndexDemo();"  value="提取"/></div>
<div class="rowElem"><label>关键字：</label><input type="text"  name="news.ntags" id="tags" /></div>
<s:hidden name="news.ndate" value="2014-04-26"/>
        <div class="rowElem"><input type="submit" value="提交" /></div>
      </form>
      </div>
      </div>
<div id="result">
您所选择的题目是<br/><span id="outtit">美国各界人士强烈批评美限制中国纺织品进口</span><br/>
此文章包含关键词<br/><span id="outkey">进口,纺织品,中国,限制,批评</span><br/>
以上关键词对应权重为<br/><span id="outtfx">5.991,2.996,0.693,2.996,2.996</span><br/>
此文章包含停用词<br/><span id="outstop">强烈,人士</span><br/>
您的标引阈值为<br/><span id="outval">2</span><br/>
关键词中符合并可作为标引词的有<br/><span id="outword">进口,纺织品,限制,批评</span><br/>
您的标引深度为<br/><span id="outdeep">3</span><br/>
最后确定的标引词为<br/><span id="outkeyword">进口,纺织品,限制</span><br/>
</div>
<script type="text/javascript">
var keylis = new Array("贸易","制裁","改造","经济","拯救","美国","整顿","银行业","银行","速度","美中","逆差","贸易逆差","结构性","转移性","机电","进出口","商会","彩电","倾销","税率","交涉","东北","亚洲","亚洲经济","论坛","增长","失业率","失业","回落","批评","限制","纺织品","进口","加拿大","统计","移民","收入","差异","银行","中央","商业","政策","措施","发展","发展","日本","日本经济","复苏","决定","锻铸","铁管","管件","征收","反倾销","垄断","倾销税","联合国","联合","实施","伊拉克","石油","食品","计划","发展中国家","发达国家","国家","家电","电信","产业","电子","信息","产销","俄罗斯","检察官","检察","首富","犯罪","调查","结束","欧盟","争端","投资","受挫","改革","委员会","委员","实行","临时","价格","干预","施行","美联储","警告"
,"膨胀","下滑","衰退","季度","扬言","演示","后台","华为","人才","市场","计算","客户","智能","目标","平台","需求","时间","合作","共赢","组织","创新","推动","应用","电子","收入","研发","网络","宽带");
var keydrop="";
function delHtmlTag(str) 
{ 
   return str.replace(/<[^>]+>/g,"");//去掉所有的html标记 
}
function lastIndexDemo(a)
{
   var str = delHtmlTag(document.getElementById("keywords").value);//获取字符串
  var keys = new Array;//词表存储序列
  var titles = new Array;
  var key = new Array;//关键词对象存储序列
  var gotkey = new Array();//关键词对象
  var name = new Array();//关键词name
  var address = new Array();//关键词在词表中位置
  var times = new Array();//关键词在本篇目中的出现次数
  var tfx = new Array();//关键词tfx值
  var stopkey = new Array();//关键词是否为停用词
  var desc = new Array();//关键词排名
  var strkey;// 声明变量预存关键字
  var strl = str.length;//获取字符串长度
  getkeywords(keys,titles);//初始化关键词表和标题序列
  getkey(str,strkey,strl,keys,key,name,address,stopkey);//获取关键词，词表位置，是否停用
  timesn(times,address);//获取n（出现多少次）
  gettfx(times,tfx);
  toobject(key,address,times,tfx,stopkey,name);
  outresult(key,address,times,tfx,stopkey,name,str);
                     
}
function getkeywords(keys,titles){
 var titl = 1;
 var keyl = keylis.length;
 var keyd = keydrop.length;
 for(i=0;i<keyl;i++){
  keys[i] = keylis[i];
  }
 for(i=0;i<keyd;i++){
  keys[i+keyl] = keydrop[i].childNodes[0].nodeValue;
  }
 for(i=0;i<titl;i++){
  titles[i] = document.getElementById("keywords").value;
  }
  
 
}
function timesn(times,address){
 var k = 0;
 for(i=0;i<address.length;i++)
  {
   for(j=0;j<address.length;j++)
    { 
     if(address[i] == address[j])
     { k = k+1;}
    }
   times.push(k);
   k = 0;
  }
}
function gettfx(times,tfx){
 var k = Math.log(10);
 var l;
 var j;
 var m;
 var n;
 for(i=0;i<times.length;i++)
 {
  l = times[i]/1;
  j = Math.log(l);
  n = times[i]*j;
  tfx.push(n.toFixed(3));
 }
}
function toobject(key,address,times,tfx,stopkey,name){
 var gotdkey = new Array;
 key["name"] = name;
 key["address"] = address;
 key["tfx"] = tfx;
 key["stopkey"] = stopkey;
 key["times"] = times;
 
}
function getkey(str,strkey,strl,keys,key,name,address,stopkey){
 for(k=strl;k>0;k--){//控制循环次数
 
     label:
     for(j=6;j>0;j--)//通过最大关键字长度控制循环
    {
     var strkey = str.substr(k-j, j);
     
     //确定预检索字符串 strl-j 是位置 j是长度
     for(i=0;i<keys.length;i++)//通过关键字字库的数量确定循环次数
     {
      if(keys[i]==strkey){//如果现有关键字与字库匹配
       name.push(strkey);
       address.push(i);
       if(i>keylis.length){
       stopkey.push(false);
       }
       else{
       stopkey.push(true);
       }
       k-=j;
       k++;
       break label;
      }
      
     }
    } 
  }
}
function outresult(key,address,times,tfx,stopkey,name,str){
 var outtit = document.getElementById("outtit");
 var outkey = document.getElementById("outkey");
 var outtfx = document.getElementById("outtfx");
 var outstop = document.getElementById("outstop");
 var outval = document.getElementById("outval");
 var outword = document.getElementById("outword");
 var outdeep = document.getElementById("outdeep");
 var outkeyword = document.getElementById("outkeyword");
 var outtags = document.getElementById("tags");
 var indesc = document.getElementById("indesc").value;
 var intfx = "1";
 var outkeyarray = new Array();
 var outkeyarray1 = new Array();
 var outkeystoparray = new Array();
 var outwordarray = new Array();
 var outtfxarray = new Array();
 var outtfxarray1 = new Array(); 
 outtit.firstChild.nodeValue = str;
 
 for(i=0;i<name.length;i++)
 {
  
  if(key["stopkey"][i] == true)
  {outkeyarray.push(key["name"][i]);
   outtfxarray.push(key["tfx"][i]);}
   
 }
 for(i=0;i<outkeyarray.length;i++)
 {
  for(j=outkeyarray.length;j>i;j--)
  {
   if(outkeyarray[i] == outkeyarray[j])
   {
    outkeyarray = outkeyarray.slice(0,j).concat(outkeyarray.slice(j+1,outkeyarray.length));
    outtfxarray = outtfxarray.slice(0,j).concat(outtfxarray.slice(j+1,outtfxarray.length));
   }
  }
 
  
 }
 
 outkey.firstChild.nodeValue = outkeyarray.join(",");
 outtfx.firstChild.nodeValue = outtfxarray.join(",");
 //
 for(i=0;i<name.length;i++)
 {
  
  if(key["stopkey"][i] == false)
  {outkeystoparray.push(key["name"][i]);}
 }
 outstop.firstChild.nodeValue = outkeystoparray.join(",");
 //
 
 outval.firstChild.nodeValue = intfx;
 //
 for(i=0;i<outkeyarray.length;i++)
 {
  
  if(outtfxarray[i]>intfx)
  {outwordarray.push(outkeyarray[i]);
   outtfxarray1.push(outtfxarray[i])}
 }
 outword.firstChild.nodeValue = outwordarray.join(",");
 outdeep.firstChild.nodeValue = indesc;
 for(i=0;i<outwordarray.length;i++)
 { var k,l;
  for(j=i+1;j<outwordarray.length;j++)
  {
   if(outtfxarray1[i]<outtfxarray1[j])
   { k=outtfxarray1[i];outtfxarray1[i]=outtfxarray1[j];outtfxarray1[j]=k;
    l=outwordarray[i];outwordarray[i]=outwordarray[j];outwordarray[j]=l;
   
   }
  }
 
 }
 
 outwordarray = outwordarray.slice(0,indesc)
 outkeyword.firstChild.nodeValue = outwordarray.join(",");
 outtags.value = outwordarray.join(",");
}
</script>