一个简单的javascript菜单_javascript教程...
时间：2010-08-10 来源：rrrjatvtk
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <title>AgetimeMenu Demo</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <mce:style><!-- .agetime_bar{ position:absolute;top:0px;left:0px;width:100%;border:1px outset;background-color:RGB(212,208,200);z-index:98; } .agetime_barItem{ width:60px;border:1px solid RGB(212,208,200);text-align:left;padding-left:10px; background:RGB(212,208,200);color:#000000;font-size:9pt; } .agetime_barItemDown{ width:60px;border:1px inset RGB(212,208,200);text-align:left;padding-left:10px; background:#F0F0F0;color:#000000;font-size:9pt; } .agetime_barItemHover{ width:60px;border:1 outset;text-align:left;padding-left:10px; background:#F0F0F0;color:#000000;font-size:9pt; } .agetime_pad{ cursor:default;font-size:9pt;width:100%; } .agetime_padItem{ width:100%;border:1px solid RGB(212,208,200);text-align:left;padding-left:10px; background:RGB(212,208,200);color:#000000;font-size:9pt; } .agetime_padItemFalse{ padding-left:10px;font-size:9pt; color:#808080; } .agetime_padItemFalseHover{ padding-left:10px;font-size:9pt; color:#808080;background-color:#333366; } .agetime_padItemHover{ width:100%;text-align:left;padding-left:10px; background-color:#333366;color:#FFFFFF;font-size:9pt; } .agetime_padItemDown{ width:100%;text-align:left;padding-left:10px;border:1px inset; background-color:#9999CC;color:#FFFFFF;font-size:9pt; } .agetime_hr{ border:1px inset; } .agetime_board{ background-color:RGB(212,208,200);border:2px outset; } --></mce:style><style mce_bogus="1"> .agetime_bar{ position:absolute;top:0px;left:0px;width:100%;border:1px outset;background-color:RGB(212,208,200);z-index:98; } .agetime_barItem{ width:60px;border:1px solid RGB(212,208,200);text-align:left;padding-left:10px; background:RGB(212,208,200);color:#000000;font-size:9pt; } .agetime_barItemDown{ width:60px;border:1px inset RGB(212,208,200);text-align:left;padding-left:10px; background:#F0F0F0;color:#000000;font-size:9pt; } .agetime_barItemHover{ width:60px;border:1 outset;text-align:left;padding-left:10px; background:#F0F0F0;color:#000000;font-size:9pt; } .agetime_pad{ cursor:default;font-size:9pt;width:100%; } .agetime_padItem{ width:100%;border:1px solid RGB(212,208,200);text-align:left;padding-left:10px; background:RGB(212,208,200);color:#000000;font-size:9pt; } .agetime_padItemFalse{ padding-left:10px;font-size:9pt; color:#808080; } .agetime_padItemFalseHover{ padding-left:10px;font-size:9pt; color:#808080;background-color:#333366; } .agetime_padItemHover{ width:100%;text-align:left;padding-left:10px; background-color:#333366;color:#FFFFFF;font-size:9pt; } .agetime_padItemDown{ width:100%;text-align:left;padding-left:10px;border:1px inset; background-color:#9999CC;color:#FFFFFF;font-size:9pt; } .agetime_hr{ border:1px inset; } .agetime_board{ background-color:RGB(212,208,200);border:2px outset; }</style> </head> <body> <mce:script language="javascript"><!-- var menu = agetimeMenu("agetime", [ [ ["文件",null,null,true,"打开文件"], //显示文字,方法,命令,状态,状栏显示文字 ["打开",null,null,false,"打开文件"], ["--"], ["你好","js","alert('Hello')",true,"一声问候"], ["新窗口","ABC","about:blank",true,"弹出ABC窗口"], ["空白",null,"about:blank",true,"在当前窗口显示空白页"] ], [ ["编辑",null,null,false,"打开文件"], ["撤消",null,null,true,"打开文件"], ["重做",null,null,true,"打开文件"] ], [ ["文件","js","alert('无子菜单')",true,"打开文件"] ] ] ); //方法为"js"时,命令则为javascript语句,为非"js"值时,命令则是一个URL,而打开这个URL的目标位置则是方法所指定的窗口; //["你好","js","alert('Hello'),true,"一声问候"]; //显示文字为"--"是按钮是一个分隔符; function agetimeMenu(id,array){ var menu=this; menu.pad=null; //装载各个子菜单 menu.barItems=[]; //菜单条的各位按钮 menu.pads=[]; //每个子菜单为一个table存放于menu.pad上; menu.selectedIndex=-1; //菜单条选中按钮的索引值 menu.board=null; //子菜单面板 //建立菜单条 this.crtMenuBar=function(){ var len=array.length; menu.bar = document.body.appendChild(document.createElement('div')); menu.bar.className=id+"_bar"; for(var i=0;i<len;i++){ menu.barItems[i]=menu.addMenuBarItem(array[i][0],i); menu.addMenuPad(array[i],i); } } //子菜单 this.addMenuPad=function(ary,index){ var len=ary.length; var pad=menu.crtElement("table",menu.pad); pad.cellSpacing=1; pad.cellPadding=0; pad.className=id+"_pad"; pad.style.display="none"; for(var i=1;i<len;i++){ var Row=pad.insertRow(i-1); menu.addMenuPadItem(ary[i],Row); } menu.pads[index]=pad; } //各子菜单按钮 this.addMenuPadItem=function(ary,Row){ var Cell=Row.insertCell(0); if(ary[0]!="--"){ Cell.innerText=ary[0]; if(ary[3]){ //有效状态; Cell.className=id+"_padItem"; Cell.onmouseover=function(){ Cell.className=id+"_padItemHover"; window.status=ary[4]; } Cell.onmouseout=function(){ Cell.className=id+"_padItem"; window.status=""; } Cell.onmousedown=function(){ Cell.className=id+"_padItemDown"; } Cell.onmouseup=function(){ Cell.className=id+"_padItemHover"; menu.hideMenu(); menu.execute(ary); } } else{ //按钮无效; Cell.className=id+"_padItemFalse"; Cell.onmouseover=function(){ Cell.className=id+"_padItemFalseHover"; window.status=ary[4]; } Cell.onmouseout=function(){ Cell.className=id+"_padItemFalse"; window.status=""; } } } else{ var hr=menu.crtElement("hr",Cell); hr.className=id+"_hr"; } Cell.onclick=function(){ event.cancelBubble=true; } } //菜单条的按钮 this.addMenuBarItem=function(ary,index){ var item=menu.crtElement("button",menu.bar); item.value=ary[0]; item.disabled=!ary[3]; item.className=id+"_barItem"; item.onmouseover=function(){ if(menu.selectedIndex==-1){ item.className=id+"_barItemHover"; } else{ menu.barItems[selectedIndex].className=id+"_barItem"; item.className=id+"_barItemDown"; menu.showMenu(index); } window.status=ary[4]; } item.onmouseout=function(){ if(menu.selectedIndex==-1) item.className=id+"_barItem"; window.status=""; } item.onclick=function(){ event.cancelBubble=true; if(menu.selectedIndex==-1){ item.className=id+"_barItemDown"; menu.showMenu(index); } else{ menu.hideMenu(); item.className=id+"_barItemHover"; } menu.execute(ary); item.blur(); } return item; } //显示子菜单 this.showMenu=function(index){ if(menu.selectedIndex!=-1) menu.pads[selectedIndex].style.display="none"; menu.board.style.pixelLeft=menu.barItems[index].offsetLeft+2; //menu.board.style.pixelHeight=""; if(menu.pads[index].rows.length>0) menu.board.style.display=""; else menu.board.style.display="none"; menu.pads[index].style.display=""; menu.selectedIndex=index; } //隐藏子菜单 this.hideMenu=function(){ if(menu.selectedIndex==-1) return; menu.barItems[menu.selectedIndex].className=id+"_barItem"; menu.pads[selectedIndex].style.display="none"; menu.selectedIndex=-1; menu.board.style.display="none"; } //执行菜单命令; this.execute=function(ary){ if(ary[2]==null) return; if(ary[1]=="js") { eval(ary[2]); menu.hideMenu(); } else if(ary[1]==null || ary[1].toLowerCase=="_self") location.href=ary[2]; else{ var x=window.open(ary[2],ary[1]); x.focus(); } } //建立子菜单的显示面板 this.crtMenuBoard=function(){ document.write( "<div id='"+id+"_board' style='position:absolute;width:160px;left:0px;top:20px;background-color:#666666;z-index:99;display:none;'>"+ "<div style='position:absolute;width:100%;left:0px;top:0px;'>"+ "<iframe id='"+id+"_frame' name='"+id+"_frame' width='100%' height='100%' frameborder='0' scrolling='no'></iframe>"+ "</div>"+ "<div id='"+id+"_pad' style='position:absolute;width:100%;left:0px;top:0px;'></div>"+ "</div>" ); menu.board=document.getElementById(id+"_board"); menu.pad=document.getElementById(id+"_pad"); menu.pad.className=id+"_board"; menu.pad.onselectstart=function(){ return false;} } //增加对像的一个子元素 this.crtElement=function(el,p){ return p.appendChild(document.createElement(el)); } //安装菜单; this.setup=function(){ menu.crtMenuBoard(); menu.crtMenuBar(); document.attachEvent("onclick",menu.hideMenu); } menu.setup(); } // --></mce:script> </body> </html>
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