textarea内容太多， 鼠标点击全部显示

 strRight+="<td bordercolor='#DEDEDE' width='500px'  height='50'><div title='"+data[i].description+"'><textarea rows='2'  "+disWord+" class='txt'   id='description'   style='font-size:12px; color:black;  text-align:left;500px; '  onChange='updateCase(this,"+data[i].id+")' >"+data[i].description+" </textarea></div></td>";

 主要用到<div title='全部内容'></div>