js拖动div 当鼠标移动时整个div也相应的移动

  HTML代码如下,其中,要拖动的div为最外层的div

  

复制代码 代码如下:

  <div id="dialog_createUserGroup" class="dialog_main" style="">

  <div id="McreateUserGroup">

  <div class="title">

  <span class="poptitle">新建用户组</span>

  <span class="dialog_close" title="关闭" onClick="closeUserGroup();">

  <img src='/images/close.png' alt='close' class='user_img' title='关闭'/>

  </span>

  </div>

  <!--新建联系人-->

  <div class="popContent">

  <span class="localinfo" style="padding:10px 10px 0 46px;">组名称</span>

  <input type="text" id="userGroupName" name="userGroupName" class="input_info" value="" style="width:265px;">

  <img src='/images/ok.png' alt='ok' class='user_img' title='ok' style="display: none;" id="email_ok"/>

  <br>

  <span id="userGroupName_info" style="margin-left: 100px; color: red;"> </span>

  <br/>

  <span class="localinfo" style="padding:10px 10px 0 46px;margin-top:20px">用   户</span>

  <div style="padding-top: 20px;width:265px;display:inline-block">

  <input type="text" id="group_username" name="group_username" class="input_info" value="" style="width:280px;">

  </div>

  <br>

  <span id="name_info" style="margin-left: 100px; color: red;"> </span>

  <br>

  <span class="localinfo" style="padding:10px 10px 0 46px;">描   述</span><br>

  <textarea id="userGroup_displayname" class="textarea_comm" rows="5" name="userGroup_displayname" style="width:265px;margin-left: 100px;"></textarea>

  <br>

  <br>

  <br>

  <br>

  <a href="javascript:void(0);" id="save_contact_btn" class="dialog_btn2" onclick="saveUserGroup();" style="margin-right: 260px;">确 定</a>   

  <a href="javascript:void(0);" class="dialog_btn2" onclick="closeUserGroup();">取 消</a>

  </div>

  js代码如下,

  

复制代码 代码如下:

  $("#McreateUserGroup").mousedown(function(e){

  var flag = true;

  e = e||event;

  var $dialog_createUserGroup = $("#dialog_createUserGroup");

  var LEFT = e.clientX - parseInt($dialog_createUserGroup.css("left")),

  TOP = e.clientY - parseInt($dialog_createUserGroup.css("top"));

  $(document).mousemove(function (e) {

  e = e || event;

  if (flag) {

  $dialog_createUserGroup.css({

  "left": e.clientX - LEFT + "px",

  "top": e.clientY - TOP + "px"

  });

  }

  });

  $(document).mouseup(function (e) {

  flag = false;

  });

  });

  这段代码对显示对话框的头部绑定鼠标监听事件,当鼠标移动时,整个div也相应的移动!