在Web中經常碰到鏈接提示文字效果,就是當鼠標經過URL鏈接時,立刻彈出一個提示層(DIV),提示鏈接內容等等相關文字.雖然知道是用隱藏DIV實現的,不過一直不知道怎么弄.昨天搜到一個JS文件,可以輕松搞定.帖出來,收藏一下.
JS文件代碼如下(mouse_on_title.js):
<!--
//***********默認設置定義.*********************
tPopWait=50; //停留tWait豪秒后顯示提示。
tPopShow=6000; //顯示tShow豪秒后關閉提示
showPopStep=20;
popOpacity=95;
fontcolor="#000000";
bgcolor="#EDEDED";
bordercolor="#007db5";
//***************內部變量定義*****************
sPop=null;curShow=null;tFadeOut=null;tFadeIn=null;tFadeWaiting=null;
document.write("<style type='text/css'id='defaultPopStyle'>");
document.write(".cPopText { background-color: " + bgcolor + ";color:" + fontcolor + "; border: 1px " + bordercolor + " 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;
-->
應用的時候,在頁面的<head></head>之間加入:
<SCRIPT language=javascript src="mouse_on_title.js"></SCRIPT>
在需要提示層的鏈接中加入title屬性,比如:
//<a href=”目標” title=”提示文字內容”>測試</a>
其實如果不加上述JS文件,提示層效果也是可以出來的.就是速度比較慢,提示層效果比較單調而已.
posted on 2005-01-26 10:43
eamoi 閱讀(2174)
評論(5) 編輯 收藏 所屬分類:
JS/VBS/HTML