标签宽度不改变内容换行
不改变标签长度，标签中的文字达到设定长度换行
[解决办法]
<a id="test"><span id='spTitle'/></a>
<input type="button" onclick="test();" value="test" />
<script type="text/javascript">
function test()
{
var test = "Immigration/Naturalization dddddd";
var result = "";
if (test.length > 30) {
result = test.substring(0, 30) + "<br/>" + test.substring(30, test.length)
}
else result = test;
$("#spTitle").html(result+"<img src="DSC_0019.jpg" style="width:30px;height:30px;"/>");
}
</script>
