利用javascript移動div層-javascript 拖動層

更新時間：2009年03月22日 02:02:28 作者：

利用javascript開發(fā)在界面上隨意拖動以下html code中的div層

利用javascript移動div層-javascript 拖動層:
程序功能:利用javascript開發(fā)在界面上隨意拖動以下html code中的div層.
javascript移動div層-javascript 拖動層代碼-
html code:

復制代碼代碼如下:

<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代碼移動層,拖動層的幾個事件 
onmousedown事件當鼠標單擊時發(fā)生 
onmousemove 事件會在鼠標指針移動時發(fā)生 
onmouseup 事件會在鼠標按鍵被松開時發(fā)生, 
onmouseout 事件會在鼠標指針移出指定的對象時發(fā)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移動div層-javascript 拖動層代碼-javascript code:

復制代碼代碼如下:

<script language="javascript"> 
// javascript文件 
/*調(diào)用方法 
//onmousedown="movetianyamessage(div_Info, event)" onmousemove="movetianyamessageend(event);" 
//onmouseup="movetianyamessageend(event)" onmouseout="movetianyamessageend(event)" 
//onmousedown=鼠標點下的時候 onmousemove=鼠標經(jīng)過的時候 onmouseup=鼠標彈起來的時候 onmouseout=鼠標離開的時候 
*/ 
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> 