当前位置: 首页 > 图文教程 > 网络编程 > Javascript > 利用javascript移动div层-javascript 拖动层

Javascript
学习ExtJS(二) Button常用方法
学习ExtJS TextField常用方法
学习ExtJS Panel常用方法
学习ExtJS Window常用方法
学习ExtJS 访问容器对象
学习ExtJS border布局
学习ExtJS fit布局使用说明
学习ExtJS form布局
学习ExtJS accordion布局
学习ExtJS table布局
Javascript 日期处理之时区问题
JavaScript 监听textarea中按键事件
Javascript isArray 数组类型检测函数
JavaScript delete 属性的使用
防止动态加载JavaScript引起的内存泄漏问题
javascript Range对象跨浏览器常用操作
JavaScript 另类遍历数组实现代码
网页制作ajax特效实例
javascript修复浏览器中头痛问题
2008年关注基于JavaScript开发的产品

Javascript 中的 利用javascript移动div层-javascript 拖动层


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-10-12   浏览: 297 ::
收藏到网摘: n/a

利用javascript开发在界面上随意拖动以下html code中的div层 利用javascript移动div层-javascript 拖动层:
程序功能:利用javascript开发在界面上随意拖动以下html code中的div层.
javascript移动div层-javascript 拖动层代码-
html code:
复制代码 代码如下:

<div id="div_Info" style="display: none; dz-index: 101; left: 175px; width: 650px;
position: absolute; top: 346px;" align="center">
<table border="0" cellpadding="0" cellspacing="0">
<tr>
<%-- 以下td中添加了javascript代码移动层,拖动层的几个事件
onmousedown事件当鼠标单击时发生
onmousemove 事件会在鼠标指针移动时发生
onmouseup 事件会在鼠标按键被松开时发生,
onmouseout 事件会在鼠标指针移出指定的对象时发生--%>
<td style="width: 628px; height: 22px; background-color: #3f3200;" class="div_table_bian"
onmousedown="movetianyamessage(div_Info, event)" onmousemove="movetianyamessageend(event);"
onmouseup="movetianyamessageend(event)" onmouseout="movetianyamessageend(event)">
</td>
<td style="width: 22px; background-color: #221B00; font-size: 12px; color: #ffffff;
height: 22px;" align="center" class="div_table_notLeft_bian" >
<a href="javascript:disponseNone(div_Info)" style=" color:White;">x</a></td>
</tr>
<tr>
<td colspan="2" style="background-color: #000000" align="center" valign="top" class="div_table_notTop_bian">
<table border="0" cellpadding="0" cellspacing="0" style="width: 90%">
<tr>
<td style="height: 25px;"></td>
</tr>
<tr>
<td style="height: 23px;" class="white12px" align="center">
<asp:Label ID="div_lblTitle" runat="server" Font-Size="16px"></asp:Label></td></tr>
<tr><td style="height: 15px" valign="top"></td></tr>
<tr><td id="Div_Td_Content" runat="server" class="white12px" valign="top"></td></tr>
<tr><td runat="server" class="white12px" valign="top" style="height: 15px"></td></tr>
<tr><td class="white12px" style="height: 40px" align="center" valign="middle">
<asp:ImageButton ID="ImageButton2" runat="server" ImageUrl="~/images/returns.jpg"
OnClientClick="disponse_div(div_Info);return false;" /></td></tr>
</table>
</td></tr>
</table>
</div>

javascript移动div层-javascript 拖动层代码-javascript code:
复制代码 代码如下:

<script language="javascript">
// javascript文件
/*调用方法
//onmousedown="movetianyamessage(div_Info, event)" onmousemove="movetianyamessageend(event);"
//onmouseup="movetianyamessageend(event)" onmouseout="movetianyamessageend(event)"
//onmousedown=鼠标点下的时候 onmousemove=鼠标经过的时候 onmouseup=鼠标弹起来的时候 onmouseout=鼠标离开的时候
*/
var tianyamessage = ''
var iLayerMaxNum = 999;
document.onmouseup = movetianyamessageend;
document.onmousemove = movetianyamessagestart;
var tianyamessagepixefX;
var tianyamessagepixefY;
function movetianyamessage(Object, event)
{
tianyamessage = Object.id;
if(document.all)
{
document.getElementById(tianyamessage).setCapture();
tianyamessagepixefX = event.x - document.getElementById(tianyamessage).style.pixelLeft;
tianyamessagepixefY = event.y - document.getElementById(tianyamessage).style.pixelTop;
}
else if(window.captureEvents)
{
window.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP);
tianyamessagepixefX = event.layerX;
tianyamessagepixefY = event.layerY;
}
document.getElementById(tianyamessage).style.zIndex = iLayerMaxNum;
iLayerMaxNum = iLayerMaxNum + 1;
}
function movetianyamessagestart(evt)
{
if(tianyamessage!=''){
if(document.all)
{
document.getElementById(tianyamessage).style.left = event.x - tianyamessagepixefX;
document.getElementById(tianyamessage).style.top = event.y - tianyamessagepixefY;
}
else if(window.captureEvents)
{
document.getElementById(tianyamessage).style.left = (evt.clientX - tianyamessagepixefX) + "px";
document.getElementById(tianyamessage).style.top = (evt.clientY - tianyamessagepixefY) + "px";
}
}
}
function movetianyamessageend(evt)
{
if(tianyamessage!='')
{
if(document.all)
{
document.getElementById(tianyamessage).releaseCapture();
tianyamessage='';
}
else if(window.captureEvents){
window.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP);
tianyamessage='';
}
}
}
function disponse_div(obj)
{
if(obj.style.display=="block")
{
obj.style.display="none";
}
else
{
obj.style.display="block";
}
}
</script>