2008-01-25 14:30 | 只看楼主
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特效：显示可移动的层并可关闭

<HTML>
<HEAD>
<META http-equiv='Content-Type' content='text/html; charset=gb2312'>
<TITLE>显示在页面上的可<a href="http:[url=http://www.51as.com/]www.51as.com[/url]" class="bluekey" target="_blank">鼠标</a>移动的层，并有关闭按钮，很酷的效果</TITLE>
</HEAD>
<BODY >
<STYLE type=text/css>
#floater {
LEFT: 400px; POSITION: absolute; TOP: 120px; VISIBILITY: visible; WIDTH: 160px; Z-INDEX: 10
}
</STYLE>
<DIV align=center id=floater style="HEIGHT: 98px; WIDTH: 240px;">
<TABLE bgColor=#deefef border=1 borderColor=#008000 borderColorDark=#00ff00
borderColorLight=#ff00ff cellPadding=2 cellSpacing=1 width="240">
  <TBODY>
  <TR>
    <TD width="100%">
      <P align=center>欢迎大家光临天极<a href="http:[url=http://www.51as.com/]www.51as.com[/url]" class="bluekey" target="_blank">网页</a>陶吧<BR>JavaScript专栏！</P></TD></TR>
  <TR>
    <TD width="100%">  欢迎光临天极网页陶吧，有什么意见和建议请尽管提出来，你的意见就是对我们的促进，我们会尽量为你们服务的.请多多支持我们的工作，成长中的每一步都会有你的足迹！！！<BR>   
      你若有什么好的建议和意见，可以给我<A
      href="mailto:yong_hanyali@163.com"><FONT color=#ff0000
      size=2>来信</FONT></A>，你若有好的例子，小编更希望能向你请教和学习。</TD></TR></TBODY></TABLE></DIV>
<SCRIPT language=JavaScript>                             
self.onError=null;                             
currentX = currentY = 0;                             
whichIt = null;                                       
lastScrollX = 0; lastScrollY = 0;                             
NS = (document.layers) ? 1 : 0;                           
IE = (document.all) ? 1: 0;                             
<!-- STALKER CODE -->                             
function heartBeat() {                             
if(IE) { diffY = document.body.scrollTop; diffX = document.body.scrollLeft; }                            if(NS) { diffY = self.pageYOffset; diffX = self.pageXOffset; }         
if(diffY != lastScrollY) {           
percent = .1 * (diffY - lastScrollY);   
if(percent > 0) percent = Math.ceil(percent);
else percent = Math.floor(percent); 
if(IE) document.all.floater.style.pixelTop += percent; 
if(NS) document.floater.top += percent;               
lastScrollY = lastScrollY + percent;     
}                     
if(diffX != lastScrollX) {     
percent = .1 * (diffX - lastScrollX);   
if(percent > 0) percent = Math.ceil(percent);     
else percent = Math.floor(percent);                 
if(IE) document.all.floater.style.pixelLeft += percent;       
if(NS) document.floater.left += percent;     
lastScrollX = lastScrollX + percent;                   
}                         
}                       
<!-- /STALKER CODE -->             
<!-- DRAG DROP CODE -->             
function checkFocus(x,y) {       
stalkerx = document.floater.pageX;   
stalkery = document.floater.pageY;                       
stalkerwidth = document.floater.clip.width;             
stalkerheight = document.floater.clip.height;                       
if( (x > stalkerx && x < (stalkerx+stalkerwidth)) && (y > stalkery && y < (stalkery+stalkerheight))) return true;                     
else return false;       
}                   
function grabIt(e) {           
if(IE) {                           
whichIt = event.srcElement;
while (whichIt.id.indexOf("floater") == -1) {   
whichIt = whichIt.parentElement;                         
if (whichIt == null) { return true; }       
}                           
whichIt.style.pixelLeft = whichIt.offsetLeft;                             
whichIt.style.pixelTop = whichIt.offsetTop;                         
currentX = (event.clientX + document.body.scrollLeft);                     
currentY = (event.clientY + document.body.scrollTop);                       
} else {                           
window.captureEvents(Event.MOUSEMOVE);   
if(checkFocus (e.pageX,e.pageY)) {                           
whichIt = document.floater;                             
stalkerTouchedX = e.pageX-document.floater.pageX;     
StalkerTouchedY = e.pageY-document.floater.pageY;         
}                             
}                           
return true;                       
}                           
function moveIt(e) {             
if (whichIt == null) { return false; }     
if(IE) {                           
newX = (event.clientX + document.body.scrollLeft);                         
newY = (event.clientY + document.body.scrollTop);               
distanceX = (newX - currentX);    distanceY = (newY - currentY); 
currentX = newX;    currentY = newY;                     
whichIt.style.pixelLeft += distanceX;                         
whichIt.style.pixelTop += distanceY;                     
if(whichIt.style.pixelTop < document.body.scrollTop) whichIt.style.pixelTop = document.body.scrollTop;    if(whichIt.style.pixelLeft < document.body.scrollLeft) whichIt.style.pixelLeft = document.body.scrollLeft; if(whichIt.style.pixelLeft > document.body.offsetWidth - document.body.scrollLeft - whichIt.style.pixelWidth - 20) whichIt.style.pixelLeft = document.body.offsetWidth - whichIt.style.pixelWidth - 20;
if(whichIt.style.pixelTop > document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5) whichIt.style.pixelTop = document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5; 
event.returnValue = false; 
} else { 
whichIt.moveTo(e.pageX-StalkerTouchedX,e.pageY-StalkerTouchedY);
if(whichIt.left < 0+self.pageXOffset) whichIt.left = 0+self.pageXOffset;
if(whichIt.top < 0+self.pageYOffset) whichIt.top = 0+self.pageYOffset; 
if( (whichIt.left + whichIt.clip.width) >= (window.innerWidth+self.pageXOffset-17)) whichIt.left = ((window.innerWidth+self.pageXOffset)-whichIt.clip.width)-17;
if( (whichIt.top + whichIt.clip.height) >= (window.innerHeight+self.pageYOffset-17)) whichIt.top = ((window.innerHeight+self.pageYOffset)-whichIt.clip.height)-17;
return false;}
return false; 
} 
function dropIt() {   
whichIt = null;   
if(NS) window.releaseEvents (Event.MOUSEMOVE); 
return true;           
}                   
<!-- DRAG DROP CODE --> 
if(NS) {   
window.captureEvents(Event.MOUSEUP|Event.MOUSEDOWN);
window.onmousedown = grabIt;
window.onmousemove = moveIt;
window.onmouseup = dropIt;
}             
if(IE) {                   
document.onmousedown = grabIt;   
document.onmousemove = moveIt; 
document.onmouseup = dropIt;         
}                       
if(NS || IE) action = window.setInterval("heartBeat()",1); 
</SCRIPT>
</BODY></HTML>













<!-- 要实现此效果需要 1 个步骤： -->

<!-- 第 1 步： -->
<!-- 把下面的代码加到<BODY></BODY>区域中： -->

<STYLE type=text/css>
#floater {
LEFT: 400px; POSITION: absolute; TOP: 120px; VISIBILITY: visible; WIDTH: 160px; Z-INDEX: 10
}
</STYLE>
<DIV align=center id=floater style="HEIGHT: 98px; WIDTH: 240px;">
<TABLE bgColor=#deefef border=1 borderColor=#008000 borderColorDark=#00ff00
borderColorLight=#ff00ff cellPadding=2 cellSpacing=1 width="240">
<TBODY>
<TR>
<TD width="100%">
<P align=center>欢迎大家光临“网络编程站”<BR>JavaScript专栏！</P></TD></TR>
<TR>
<TD width="100%"> 欢迎光临网络编程站，有什么意见和建议请尽管提出来，你的意见就是对我们的促进，我们会尽量为你们服务的.请多多支持我们的工作，成长中的每一步都会有你的足迹！！！<BR>
你若有什么好的建议和意见，可以给我<A
href="mailto:webmaster@javascript2000.com"><FONT color=#ff0000
size=2>来信</FONT></A>，你若有好的例子，站长更希望能向你请教和学习。</TD></TR></TBODY></TABLE></DIV>
<SCRIPT language=JavaScript>
self.onError=null;
currentX = currentY = 0;
whichIt = null;
lastScrollX = 0; lastScrollY = 0;
NS = (document.layers) ? 1 : 0;
IE = (document.all) ? 1: 0;
<!-- STALKER CODE -->
function heartBeat() {
if(IE) { diffY = document.body.scrollTop; diffX = document.body.scrollLeft; } if(NS) { diffY = self.pageYOffset; diffX = self.pageXOffset; }
if(diffY != lastScrollY) {
percent = .1 * (diffY - lastScrollY);
if(percent > 0) percent = Math.ceil(percent);
else percent = Math.floor(percent);
if(IE) document.all.floater.style.pixelTop += percent;
if(NS) document.floater.top += percent;
lastScrollY = lastScrollY + percent;
}
if(diffX != lastScrollX) {
percent = .1 * (diffX - lastScrollX);
if(percent > 0) percent = Math.ceil(percent);
else percent = Math.floor(percent);
if(IE) document.all.floater.style.pixelLeft += percent;
if(NS) document.floater.left += percent;
lastScrollX = lastScrollX + percent;
}
}
<!-- /STALKER CODE -->
<!-- DRAG DROP CODE -->
function checkFocus(x,y) {
stalkerx = document.floater.pageX;
stalkery = document.floater.pageY;
stalkerwidth = document.floater.clip.width;
stalkerheight = document.floater.clip.height;
if( (x > stalkerx && x < (stalkerx+stalkerwidth)) && (y > stalkery && y < (stalkery+stalkerheight))) return true;
else return false;
}
function grabIt(e) {
if(IE) {
whichIt = event.srcElement;
while (whichIt.id.indexOf("floater") == -1) {
whichIt = whichIt.parentElement;
if (whichIt == null) { return true; }
}
whichIt.style.pixelLeft = whichIt.offsetLeft;
whichIt.style.pixelTop = whichIt.offsetTop;
currentX = (event.clientX + document.body.scrollLeft);
currentY = (event.clientY + document.body.scrollTop);
} else {
window.captureEvents(Event.MOUSEMOVE);
if(checkFocus (e.pageX,e.pageY)) {
whichIt = document.floater;
stalkerTouchedX = e.pageX-document.floater.pageX;
StalkerTouchedY = e.pageY-document.floater.pageY;
}
}
return true;
}
function moveIt(e) {
if (whichIt == null) { return false; }
if(IE) {
newX = (event.clientX + document.body.scrollLeft);
newY = (event.clientY + document.body.scrollTop);
distanceX = (newX - currentX); distanceY = (newY - currentY);
currentX = newX; currentY = newY;
whichIt.style.pixelLeft += distanceX;
whichIt.style.pixelTop += distanceY;
if(whichIt.style.pixelTop < document.body.scrollTop) whichIt.style.pixelTop = document.body.scrollTop; if(whichIt.style.pixelLeft < document.body.scrollLeft) whichIt.style.pixelLeft = document.body.scrollLeft; if(whichIt.style.pixelLeft > document.body.offsetWidth - document.body.scrollLeft - whichIt.style.pixelWidth - 20) whichIt.style.pixelLeft = document.body.offsetWidth - whichIt.style.pixelWidth - 20;
if(whichIt.style.pixelTop > document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5) whichIt.style.pixelTop = document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5;
event.returnValue = false;
} else {
whichIt.moveTo(e.pageX-StalkerTouchedX,e.pageY-StalkerTouchedY);
if(whichIt.left < 0+self.pageXOffset) whichIt.left = 0+self.pageXOffset;
if(whichIt.top < 0+self.pageYOffset) whichIt.top = 0+self.pageYOffset;
if( (whichIt.left + whichIt.clip.width) >= (window.innerWidth+self.pageXOffset-17)) whichIt.left = ((window.innerWidth+self.pageXOffset)-whichIt.clip.width)-17;
if( (whichIt.top + whichIt.clip.height) >= (window.innerHeight+self.pageYOffset-17)) whichIt.top = ((window.innerHeight+self.pageYOffset)-whichIt.clip.height)-17;
return false;}
return false;
}
function dropIt() {
whichIt = null;
if(NS) window.releaseEvents (Event.MOUSEMOVE);
return true;
}
<!-- DRAG DROP CODE -->
if(NS) {
window.captureEvents(Event.MOUSEUP|Event.MOUSEDOWN);
window.onmousedown = grabIt;
window.onmousemove = moveIt;
window.onmouseup = dropIt;
}
if(IE) {
document.onmousedown = grabIt;
document.onmousemove = moveIt;
document.onmouseup = dropIt;
}
if(NS || IE) action = window.setInterval("heartBeat()",1);
</SCRIPT>