JS+CSS实现可拖动的弹出提示框

本文实例讲述了JS+CSS实现可拖动的弹出提示框。分享给大家供大家参考。具体实现方法如下:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>JS+CSS打造的可拖动的弹出提示框</title>

<style type="text/css">

a{ color:#000; font-size:12px;text-decoration:none}

a:hover{ color:#900; text-decoration:underline}

body{background:;filter:progid:DXImageTransform.Microsoft.Gradient(gradientType=0,startColorStr=#ffffff,endColorStr=#003366); overflow:hidden}

#massage_box{ position:absolute; left:expression((body.clientWidth-350)/2); top:expression((body.clientHeight-200)/2); width:350px; height:200px;filter:dropshadow(color=#666666,offx=3,offy=3,positive=2); z-index:2; visibility:hidden}

#mask{ position:absolute; top:0; left:0; width:expression(body.scrollWidth);height:expression(body.scrollHeight); background:#666; filter:ALPHA(opacity=60); z-index:1; visibility:hidden}

.massage{border:#036 solid; border-width:1 1 3 1; width:95%; height:95%; background:#fff; color:#036; font-size:12px; line-height:150%}

.header{background:#036; height:10%; font-family:Verdana, Arial, Helvetica, sans-serif; font-size:12px; padding:3 5 0 5; color:#fff}

</style>

<!--实现层移动-->

<script language="javascript">

var Obj=''

document.onmouseup=MUp

document.onmousemove=MMove

function MDown(Object){

Obj=Object.id

document.all(Obj).setCapture()

pX=event.x-document.all(Obj).style.pixelLeft;

pY=event.y-document.all(Obj).style.pixelTop;

}

function MMove(){ if(Obj!=''){   document.all(Obj).style.left=event.x-pX;   document.all(Obj).style.top=event.y-pY;   } }

function MUp(){ if(Obj!=''){   document.all(Obj).releaseCapture();   Obj='';   } } </script> </head><body> <div id="massage_box"><div class="massage"> <div class="header" onmousedown=MDown(massage_box)> <span onClick="massage_box.style.visibility='hidden'; mask.style.visibility='hidden'" style="float:right; display:inline; cursor:hand">×</span></div> </div></div> <div id="mask"></div> <span onClick="mask.style.visibility='visible';massage_box.style.visibility='visible'" style="cursor:hand"><a href="#"><font size=18px>点此提示</font></a></span> </body> </html>

希望本文所述对大家的javascript程序设计有所帮助。

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