onclick传递参数

<script id="jp_tch_tbl_rank" type="text/template">
            <ul class="jp_style_ul">
			<%_.each(items, function(item){%>
			<li class = "panel-tm" date-role="<%=item.jpId%>">
				<p></P>
				<label><span><%=item.position%>. <%=item.itemcontent%></span> <button class="btn btn-success" jpId="<%=item.jpId%>" item="<%=item.itemcontent%>"  onclick="modfyitem(this)"  >修改</button></label>
				<p></P>
				<%_.each(item.options, function(option){%>
					<div class="half-div"><span><%=option.opSort%>. <%=option.content%>（<%=option.score%>）</span><a href="javascript:void(0)"  opId="<%=option.opId%>"  opSort="<%=option.opSort%>"  opContent="<%=option.content%>"  opScore="<%=option.score%>" onclick="modfyoption(this)" >修改</a></div>
				<%})%>
			</li>
			<%})%>
		</ul>
        </script>

function modfyoption(e){
            
            var opId = e.getAttribute("opId");
            var opSort = e.getAttribute("opSort");
            var opContent = e.getAttribute("opContent");
            var opScore = e.getAttribute("opScore");

            $.blockUI({
                message: $('.modal_jp_modifyoption'),
                overlayCSS: {
                    cursor: 'default',
                    borderkey: '0px'
                },
                css: {
                    cursor: 'default',
                    position: 'absoulte',
                    textAlign: 'left',
                    border: '0px'
                }
            });
            $('.btn-apply-jp-modifyoption').unbind("click");
            $('.btn-apply-jp-modifyoption').click(function() {
            	

                ZX.formSubmitByAjax(
                    $('.jpModifyoptionForm'),
                    jpUrl.base + jpUrl.modifyoption,
                    function() {
                        var note = noty({
                            text: "修改成功",
                            type: 'success',
                            killer: true,
                            timeout: 2000
                        });
                        $.unblockUI();
                    },
                    function(r) {
                        var note = noty({
                            text: r.error,
                            type: 'error',
                            killer: true,
                            timeout: 2000
                        });
                    }
                )
            })

            $('.btn-close-jp-modifyoption').unbind("click");
            $('.btn-close-jp-modifyoption').click(function(e) {
                $.unblockUI();
            });

            $(".jpModifyoptionForm :input[name='opId']").val(opId);
            $(".jpModifyoptionForm :input[name='opSort']").val(opSort);
            $(".jpModifyoptionForm :input[name='opContent']").val(opContent);
            $(".jpModifyoptionForm :input[name='opScore']").val(opScore);
			}