如图所示：
单击页面上注册时弹出的用户注册模态窗口：
模态窗口js源码：
function ModalDialog(name,divid,width,height,leftop,topop,color)
{
this.name=name;//名称 this.div=divid;//要放入窗体中的元素名称 this.width=width;//窗体高 this.height=height;//窗体宽 this.leftop=leftop;//左侧位置 this.topop=topop;//上部位置 this.color=color;//整体颜色 this.show=function()//显示窗体
{
document.all(obj.name+"_divshow").style.width=obj.width; document.all(obj.name+"_divshow").style.height=obj.height; document.all(obj.name+"_divshow").style.left=obj.leftop; document.all(obj.name+"_divshow").style.top=obj.topop; document.all(obj.name+"_mask").style.width=document.body.clientWidth; document.all(obj.name+"_mask").style.height=document.body.clientHeight; document.all(obj.name+"_divshow").style.visibility="visible"; document.all(obj.name+"_mask").style.visibility="visible";
} this.close=function()//关闭窗体 { document.all(obj.name+"_divshow").style.width=0; document.all(obj.name+"_divshow").style.height=0; document.all(obj.name+"_divshow").style.left=0; document.all(obj.name+"_divshow").style.top=0; document.all(obj.name+"_mask").style.width=0; document.all(obj.name+"_mask").style.height=0; document.all(obj.name+"_divshow").style.visibility="hidden"; document.all(obj.name+"_mask").style.visibility="hidden"; } this.toString=function() { var tmp="<div id='"+this.name+"_divshow' style='position:absolute; left:0; top:0;z-index:10; visibility:hidden;0;height:0'>"; tmp+="<table cellpadding=0 cellspacing=0 border=0 width=100% height=100%>"; tmp+="<tr height=28>"; tmp+="<td bgcolor='"+obj.color+"' align=right colspan=3>"; tmp+="</td>"; tmp+="</tr>"; tmp+="<tr>"; tmp+="<td bgcolor='"+obj.color+"' width=2></td>"; tmp+="<td bgcolor=#ffffff id='"+this.name+"_content' valign=top> </td>"; tmp+="<td bgcolor='"+obj.color+"'width=2></td>"; tmp+="</tr>"; tmp+="<tr height=2><td bgcolor='"+obj.color+"' colspan=3></td></tr>" tmp+="</table>"; tmp+="</div>"; tmp+="<div id='"+this.name+"_mask' style='position:absolute; top:0; left:0; 0; height:0; background:#666; filter:ALPHA(opacity=60); z-index:9; visibility:hidden'></div>"; document.write(tmp); document.all(this.name+"_content").insertBefore(document.all(this.div)); } var obj=this;
}页面调用
<html xmlns="http://www.w3.org/1999/xhtml"><head id="Head1" runat="server"> <title>登录</title> <script src="js/ModalDialog2.js" type="text/jscript"></script> <script language="JavaScript"> var md=new ModalDialog2("md","frm_reg",300,200,100,100,"#ff0000"); //显示注册窗口 function uRegShow() { md.show(); return false; } //关闭注册窗口 function uRegdisplay() { md.close(); return false; } </script></head><body > <form id="Form1" name="form1" runat=server> <a href='' onclick="javascript:return uRegShow();">注册</a> <div style="display: none;"> <table id=frm_reg width=200 height=200> <tr> <td colspan=2>用户注册</td> </tr> <tr> <td>name</td> <td><asp:TextBox ID="TextBox1" runat="server"></asp:TextBox></td> </tr> <tr> <td>pass</td> <td><asp:TextBox ID="TextBox2" runat="server"></asp:TextBox></td> </tr> <tr> <td> <button > 确定</button> </td> <td> <button onclick="uRegdisplay();"> 关闭 </button> </td> </tr> </table> </div> </form> <script language="javascript" type="text/javascript"> md.toString(); </script></body></html>