固定文字说明的导航.doc

脚本说明:把如下代码加入区域中function lib_bwcheck() /Browsercheck (needed)this.ver=navigator.appVersionthis.agent=navigator.userAgentthis.dom=document.getElementById?1:0this.opera5=this.agent.indexOf(Opera 5)-1this.ie5=(this.ver.indexOf(MSIE 5)-1 & this.dom & !this.opera5)?1:0; this.ie6=(this.ver.indexOf(MSIE 6)-1 & this.dom & !this.opera5)?1:0;this.ie4=(document.all & !this.dom & !this.opera5)?1:0;this.ie=this.ie4|this.ie5|this.ie6this.mac=this.agent.indexOf(Mac)-1this.ns6=(this.dom & parseInt(this.ver) = 5) ?1:0; this.ns4=(document.layers & !this.dom)?1:0;this.bw=(this.ie6 | this.ie5 | this.ie4 | this.ns4 | this.ns6 | this.opera5)return thisvar bw=new lib_bwcheck()if(document.layers) /NS4 resize fix.scrX= innerWidth; scrY= innerHeight;onresize= function()if(scrX!= innerWidth | scrY!= innerHeight)history.go(0) /*Variables to set */msgFont= arial,helvetiva / The font for the messagemsgFontSize= 12 / Set the fontSize in pxmsgFontColor=#000000 / Set the fontColormsgWidth= 300 / Set the width of the messageblock here for netscape 4/Set the text you want to display on mouseover here.messages=new Array()messages0= /This is the default text that appears when you mouse out.messages1=这里是链接一的说明内容messages2=这里是链接二的说明内容messages3=This link however, nr3, isnt that good.messages4=Maybe you should try this one?Ill write some more text to show that it wraps correctly to several lines.messages5=这里是链接五的说明内容messages6=Later all./*You dont have to change anything below this*/ChangeText object constructor.function makeChangeTextObj(obj)this.css = bw.dom?document.getElementById(obj).style:bw.ie4?document.allobj.style:bw.ns4?document.layersobj:0; this.writeref = bw.dom?document.getElementById(obj):bw.ie4?document.allobj:bw.ns4?document.layersobj.document:0; this.writeIt = b_writeIt; function b_writeIt(text,num)if (bw.ns4)this.writeref.write(text)this.writeref.close()else this.writeref.innerHTML = messagesnum/The mouoseover function. Calls the writeIt method to write the text to the div.function changeText(num)if(bw.bw) oMessage.writeIt(+messagesnum+, num)/The init function. Calls the object constructor and initiates some properties.function changeTextInit()/Fixing the browsercheck for opera. this can be removed if the browsercheck has been updated!bw.opera5 = (navigator.userAgent.indexOf(Opera)-1 & document.getElementById)?true:falseif (bw.opera5) bw.ns6 = 0oMessage = new makeChangeTextObj(divMessage)oLinks = new makeChangeTextObj(divLinks)/Setting the style properties of the text layer.if(bw.dom | bw.ie4)with(oMessage.writeref.style)fontFamily=msgFont; fontSize=msgFontSize+px; color=msgFontColor/Both layers are hidden by default to prevent users from mousing over them and creating errors while the page loads.oMessage.css.visibility= visibleoL