可移动的导航菜单
加入如下代码到head区域 <SCRIPT LANGUAGE="JavaScript"> <!-- Begin function checkVersion4() { var x = navigator.appVersion; y = x.substring(0,4); if (y>=4) setVariables();moveOB(); } function setVariables() { if (navigator.appName == "Netscape") { h=".left=";v=".top=";dS="document.";sD=""; } else{ h=".pixelLeft=";v=".pixelTop=";dS="";sD=".style"; } objectX="object11" XX=-70; YY=-70; OB=11; } function setObject(a) { objectX="object"+a; OB=a; XX=eval("xpos"+a); YY=eval("ypos"+a); } function getObject() { if (isNav) document.captureEvents(Event.MOUSEMOVE); } function releaseObject() { if (isNav) document.releaseEvents(Event.MOUSEMOVE); check="no"; objectX="object11"; document.close(); } function moveOB() { eval(dS + objectX + sD + h + Xpos); eval(dS + objectX + sD + v + Ypos); } var isNav = (navigator.appName.indexOf("Netscape") !=-1); var isIE = (navigator.appName.indexOf("Microsoft") !=-1); nsValue=(document.layers); check="no"; function MoveHandler(e) { Xpos = (isIE) ? event.clientX : e.pageX; Ypos = (nsValue) ? e.pageY : event.clientY; if (check=="no") { diffX=XX-Xpos; diffY=YY-Ypos; check="yes"; if (objectX=="object11") check="no"; } Xpos+=diffX; Ypos+=diffY; if (OB=="1") xpos1=Xpos,ypos1=Ypos; moveOB(); } if (isNav) { document.captureEvents(Event.CLICK); document.captureEvents(Event.DBLCLICK); } xpos1=50; // make this the left pixel value for object1 below ypos1=50; // make this the top pixel value for object1 below xpos11 = -50; ypos11 = -50; Xpos=5; Ypos=5; document.onmousemove = MoveHandler; document.onclick = getObject; document.ondblclick = releaseObject; // End --> </script>
加入如下代码到body区域 <br> <div id="object1" style="position:absolute; visibility:show; left:50px; top:50px; z-index:2"> <table border=1 cellpadding=5 width="139"> <tr> <td bgcolor=eeeeee height="30"><a href="javascript:void(0)" onmousedown="setObject(1)"><font size="2" color="#000000">单击移动双击放下</font></a> </td> </tr> <tr> <td> <br> <A HREF="link.htm">菜单类目一</A><br> <A HREF="link.htm">菜单类目二</a><br> <A HREF="link.htm">菜单类目三</a> </td> </tr> </table> </div> <div id="object11" style="position:absolute; visibility:show; left:-70px; top:-70px; z-index:2"> </div>
第三步：把“OnLoad="checkVersion4()"”加在<body>标记里 例如：<body OnLoad="checkVersion4()">
