解决鼠标拖动和单击事件共存

<script type="text/javascript">        var isMousemove=false;//全局变量，用来存贮鼠标移动状态        $(function(){            isMousemove=true;//设置鼠标移动为真            $("#list1, #list2,#list3").dragsort({                dragSelector: "li",                dragBetween: true,                dragEnd: saveOrder,                placeHolderTemplate: "<li class='placeHolder'></li>"            });            function saveOrder() {                isMousemove=true;//设置鼠标移动为真                var data = $("#list1 li").map(function() { return $(this).children().html(); }).get();                $("input[name=list1SortOrder]").val(data.join("|"));            };                          $(".list_title").click(function(){                $(this).siblings("ul").toggle();            });                          $(".list_child").click(function(){                if(!isMousemove){//判断鼠标移动是否为真                    alert("拖拽能能触发点击我么？");                    return false;                }else{                    isMousemove=false;                }            })        })    </script>