javascript经典效果(三)
二 鼠标旁边的提示信息,类似与163登录后的
页面提示
效果:
- <a href="#" title="这是提示">tip</a>
 - <script Language="JavaScript">
 - //***********默认设置定义.*********************
 - tPopWait=50;//停留tWait豪秒后显示提示。
 - tPopShow=5000;//显示tShow豪秒后关闭提示
 - showPopStep=20;
 - popOpacity=99;
 - //***************内部变量定义*****************
 - sPop=null;
 - curShow=null;
 - tFadeOut=null;
 - tFadeIn=null;
 - tFadeWaiting=null;
 - document.write("<style type='text/css'id='defaultPopStyle'>");
 - document.write(".cPopText { background-color: #F8F8F5;color:#000000; border: 1px #000000 solid;font-color: font-size: 12px; padding-right: 4px; padding-left: 4px; height: 20px; padding-top: 2px; padding-bottom: 2px; filter: Alpha(Opacity=0)}");
 - document.write("</style>");
 - document.write("<div id='dypopLayer' style='position:absolute;z-index:1000;' class='cPopText'></div>");
 - function showPopupText(){
 - var o=event.srcElement;
 - MouseX=event.x;
 - MouseY=event.y;
 - if(o.alt!=null && o.alt!=""){o.dypop=o.alt;o.alt=""};
 - if(o.title!=null && o.title!=""){o.dypop=o.title;o.title=""};
 - if(o.dypop!=sPop) {
 - sPop=o.dypop;
 - clearTimeout(curShow);
 - clearTimeout(tFadeOut);
 - clearTimeout(tFadeIn);
 - clearTimeout(tFadeWaiting);
 - if(sPop==null || sPop=="") {
 - dypopLayer.innerHTML="";
 - dypopLayer.style.filter="Alpha()";
 - dypopLayer.filters.Alpha.opacity=0;
 - }
 - else {
 - if(o.dyclass!=null) popStyle=o.dyclass
 - else popStyle="cPopText";
 - curShow=setTimeout("showIt()",tPopWait);
 - }
 - }
 - }
 - function showIt(){
 - dypopLayer.className=popStyle;
 - dypopLayer.innerHTML=sPop;
 - popWidth=dypopLayer.clientWidth;
 - popHeight=dypopLayer.clientHeight;
 - if(MouseX+12+popWidth>document.body.clientWidth) popLeftAdjust=-popWidth-24
 - else popLeftAdjust=0;
 - if(MouseY+12+popHeight>document.body.clientHeight) popTopAdjust=-popHeight-24
 - else popTopAdjust=0;
 - dypopLayer.style.left=MouseX+12+document.body.scrollLeft+popLeftAdjust;
 - dypopLayer.style.top=MouseY+12+document.body.scrollTop+popTopAdjust;
 - dypopLayer.style.filter="Alpha(Opacity=0)";
 - fadeOut();
 - }
 - function fadeOut(){
 - if(dypopLayer.filters.Alpha.opacity<popOpacity) {
 - dypopLayer.filters.Alpha.opacity+=showPopStep;
 - tFadeOut=setTimeout("fadeOut()",1);
 - }
 - else {
 - dypopLayer.filters.Alpha.opacity=popOpacity;
 - tFadeWaiting=setTimeout("fadeIn()",tPopShow);
 - }
 - }
 - function fadeIn(){
 - if(dypopLayer.filters.Alpha.opacity>0) {
 - dypopLayer.filters.Alpha.opacity-=1;
 - tFadeIn=setTimeout("fadeIn()",1);
 - }
 - }
 - document.onmouseover=showPopupText;
 - </script>