前台将勾选的多个属性放到一个value里面，是一个字符串，传到后台

	function changeStreet(a){
		var valk=$(a).html();  
		$(a).parents(".select_box").children(".select_choose").children(".hadSelect").text(valk);
		$(a).parents("ul.select_ul").hide();
		$(a).parents(".select_box").children(".select_text").val(valk);
	}







 <p class="pOut choice">
                <label><b>房型</b>：</label>
                <span class="fangxing" id="fx1">普通住宅</span><span class="fangxing" id="fx2">复式</span><span class="fangxing"  id="fx3">LOFT</span><span class="fangxing"  id="fx4">跃式</span><span class="fangxing"  id="fx5">单间</span>
                <input type="hidden" class="select_text" name="hm" value=""/>
                <em class="errorChoice"></em> <b class="sum"></b> </p>