要完成此效果把如下代碼加入到區(qū)域中 <script> var isNS4=(document.layers) ? 1 : 0; var isIE4=(document.all)? 1 : 0; var isMoz=((document.getElementById) && !(isIE4)) ? 1 :0; function ShowNavigateur() { alert(isNS4); alert(isIE4); alert(isMoz); } function activate_mousemove(function_mouse) { if(isNS4||isMoz) document.captureEvents(Event.MOUSEMOVE); document.onmousemove = function_mouse; } function get_mouse(e) { var mouse=new Array(); mouse.x=0; mouse.y=0; if(isNS4||isMoz){ mouse.x=e.pageX; mouse.y=e.pageY; }else if(isIE4){ mouse.x=event.x+document.body.scrollLeft; mouse.y=event.y+document.body.scrollTop; } return mouse; } function get_layer(name) { if(isNS4){ layer=findLayer(name, document); //if(layer==null) //alert('Pb de layer'); return layer; } else if (isIE4){ //window.status=document.all[name]; return document.all[name]; } else if (isMoz) { return document.getElementById(name); } //alert('Pb de noms'); return null; } function findLayer(name, doc) { var i, layer; //alert(doc.layers.length); for (i = 0; i < doc.layers.length; i++) { layer = doc.layers[i]; //alert(layer.name); if (layer.name == name) return layer; if (layer.document.layers.length > 0) if ((layer = findLayer(name, layer.document)) != null) return layer; } return null; } function hide_layer(layer) { if(layer==null){ //window.status="Pas de layer ?cacher"; return; } if (isNS4){ layer.visibility = "hide"; } if (isIE4||isMoz){ layer.style.visibility = "hidden"; } } function show_layer(layer) { if(isNS4){ layer.visibility = "show"; } if(isIE4||isMoz){ layer.style.visibility = "visible"; } } function move_layer_to(layer, x, y) { //window.status=layer; if (isNS4) { layer.moveTo(x, y); } if (isIE4||isMoz){ //window.status=layer.style; layer.style.left = x; layer.style.top = y; } } function setzIndex(layer, z) { if(isNS4) layer.zIndex = z; if(isIE4||isMoz) layer.style.zIndex = z; } function modify_content_layer(layer,content) { if(isNS4){ layer.document.write(content); layer.document.close(); } else if(isIE4||isMoz){ layer.innerHTML=content; } } </script>

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