js实现树形内容展示

<div style="height:auto;margin-left: 20px;">  
                  
                  <s:iterator value="targetlist">
    				<input type="text" style="display:none" value="<s:property value="id.targetnumber.trim()"/>" class="targetnumber">
 				 </s:iterator>
 				 <s:iterator value="requirementlist">
    				<input type="text" style="display:none" value="<s:property value="id.requirementnumber.trim()"/>" class="requirementnumber">
 				 </s:iterator>
                  <s:iterator value="pointlist">
    				<input type="text" style="display:none" value="<s:property value="id.pointnumber.trim()"/>" class="pointnumber">
 				 </s:iterator>
                  
	<script type="text/javascript">		
	d = new dTree(‘d‘);
	d.add(0,-1,‘培养要求树‘);		
	d.add(10,0,‘培养要求‘);
	$(‘.targetnumber‘).each(function(){
	d.add(this.value,10,‘培养目标‘+this.value,‘Target4.action?targetnumber=‘+this.value+‘‘, ‘‘, ‘main‘);
	});
	$(‘.requirementnumber‘).each(function(){
	d.add(this.value,this.value.substring(0,1),‘毕业要求‘+this.value,‘Point.action?requirementnumber=‘+this.value+‘‘, ‘‘, ‘main‘);
	});
	$(‘.pointnumber‘).each(function(){
	d.add(this.value,this.value.substring(0,2),‘指标点‘+this.value,‘PointPoint.action?requirementnumber=‘+this.value+‘‘, ‘‘, ‘main‘);
	});
	document.write(d);
		
	</script>