<html>
<head>
<title>網頁特效|www
wangqi
com|
模擬滾動條</title>
<meta http
equiv="Content
Type" content="text/html; charset=gb
">
<STYLE type=text/css>
#scrollerContent {POSITION: absolute}
body {font
size:
pt;color:#
;text
decoration: none}
</STYLE>
<script>
var upH =
;//向上的箭頭的高度
var upW =
; //向上的箭頭的寬度
var downH =
;//向下的箭頭的高度
var downW =
;//向下的箭頭的寬度
var dragH =
; //滾動條的高度
var dragW =
; //滾動條的寬度
var scrollH =
; //滾動體的高度
var speed =
; //滾動的速度
var dom = document
getElementById ? true:false;
var nn
= document
layers ? true:false;
var ie
= document
all ? true:false;
var mouseY;
var mouseX;
var clickUp = false;
var clickDown = false;
var clickDrag = false;
var clickAbove = false;
var clickBelow = false;
var timer = setTimeout(""
);
var upL;
var upT;
var downL;
var downT;
var dragL;
var dragT;
var rulerL;
var rulerT;
var contentT;
var contentH;
var contentClipH;
var scrollLength;
var startY;
function down(e){
if((document
layers && e
which!=
) || (document
all && event
button!=
)) return true;
getMouse(e);
startY = (mouseY
dragT);
if(mouseX >= upL && (mouseX <= (upL + upW)) && mouseY >= upT && (mouseY <= (upT + upH))){
clickUp = true;
return scrollUp();
}
else if(mouseX >= downL && (mouseX <= (downL + downW)) && mouseY >= downT && (mouseY <= (downT + downH))){
clickDown = true;
return scrollDown();
}
else if(mouseX >= dragL && (mouseX <= (dragL + dragW)) && mouseY >= dragT && (mouseY <= (dragT + dragH))){
clickDrag = true;
return false;
}
else if(mouseX >= dragL && (mouseX <= (dragL + dragW)) && mouseY >= rulerT && (mouseY <= (rulerT + scrollH))){
if(mouseY < dragT){
clickAbove = true;
clickUp = true;
return scrollUp();
}
else{
clickBelow = true;
clickDown = true;
return scrollDown();
}
}
else{
return true;
}
}
function move(e){
if(clickDrag && contentH > contentClipH){
getMouse(e);
dragT = (mouseY
startY);
if(dragT < (rulerT))
dragT = rulerT;
if(dragT > (rulerT + scrollH
dragH))
dragT = (rulerT + scrollH
dragH);
contentT = ((dragT
rulerT)*(
/scrollLength));
contentT = eval(
+ contentT);
moveTo();
if(ie
)
return false;
}
}
function up(){
clearTimeout(timer);
clickUp = false;
clickDown = false;
clickDrag = false;
clickAbove = false;
clickBelow = false;
return true;
}
function getT(){
if(ie
)
contentT = document
all
scrollerContent
style
pixelTop;
else if(nn
)
contentT = document
scrollerContentClip
document
scrollerContent
top;
else if(dom)
contentT = parseInt(document
getElementById("scrollerContent")
style
top);
}
function getMouse(e){
if(ie
){
mouseY = event
clientY + document
body
scrollTop;
mouseX = event
clientX + document
body
scrollLeft;
}
else if(nn
|| dom){
mouseY = e
pageY;
mouseX = e
pageX;
}
}
function moveTo(){
if(ie
){
document
all
scrollerContent
style
top = contentT;
document
all
ruler
style
top = dragT;
document
all
drag
style
top = dragT;
}
else if(nn
){
document
scrollerContentClip
document
scrollerContent
top = contentT;
document
ruler
top = dragT;
document
drag
top = dragT;
}
else if(dom){
document
getElementById("scrollerContent")
style
top = contentT + "px";
document
getElementById("drag")
style
top = dragT + "px";
document
getElementById("ruler")
style
top = dragT + "px";
}
}
function scrollUp(){
getT();
if(clickAbove){
if(dragT <= (mouseY
(dragH/
)))
return up();
}
if(clickUp){
if(contentT <
){
dragT = dragT
(speed*scrollLength);
if(dragT < (rulerT))
dragT = rulerT;
contentT = contentT + speed;
if(contentT >
)
contentT =
;
moveTo();
timer = setTimeout("scrollUp()"
);
}
}
return false;
}
function scrollDown(){
getT();
if(clickBelow){
if(dragT >= (mouseY
(dragH/
)))
return up();
}
if(clickDown){
if(contentT >
(contentH
contentClipH)){
dragT = dragT + (speed*scrollLength);
if(dragT > (rulerT + scrollH
dragH))
dragT = (rulerT + scrollH
dragH);
contentT = contentT
speed;
if(contentT <
(contentH
contentClipH))
contentT =
(contentH
contentClipH);
moveTo();
timer = setTimeout("scrollDown()"
);
}
}
return false;
}
function reloadPage(){
location
reload();
}
function eventLoader(){
if(ie
){
upL = document
all
up
style
pixelLeft;
upT = document
all
up
style
pixelTop;
downL = document
all
down
style
pixelLeft;
downT = document
all
down
style
pixelTop;
dragL = document
all
drag
style
pixelLeft;
dragT = document
all
drag
style
pixelTop;
rulerT = document
all
ruler
style
pixelTop;
contentH = parseInt(document
all
scrollerContent
scrollHeight);
contentClipH = parseInt(document
all
scrollerContentClip
style
height);
}
else if(nn
){
upL = document
up
left;
upT = document
up
top;
downL = document
down
left;
downT = document
down
top;
dragL = document
drag
left;
dragT = document
drag
top;
rulerT = document
ruler
top;
contentH = document
scrollerContentClip
document
scrollerContent
clip
bottom;
contentClipH = document
scrollerContentClip
clip
bottom;
}
else if(dom){
upL = parseInt(document
getElementById("up")
style
left);
upT = parseInt(document
getElementById("up")
style
top);
downL = parseInt(document
getElementById("down")
style
left);
downT = parseInt(document
getElementById("down")
style
top);
dragL = parseInt(document
getElementById("drag")
style
left);
dragT = parseInt(document
getElementById("drag")
style
top);
rulerT = parseInt(document
getElementById("ruler")
style
top);
contentH = parseInt(document
getElementById("scrollerContent")
offsetHeight);
contentClipH = parseInt(document
getElementById("scrollerContentClip")
offsetHeight);
document
getElementById("scrollerContent")
style
top =
+ "px";
}
scrollLength = ((scrollH
dragH)/(contentH
contentClipH));
if(nn
){
document
captureEvents(Event
MOUSEDOWN | Event
MOUSEMOVE | Event
MOUSEUP);
window
onresize = reloadPage;
}
document
onmousedown = down;
document
onmousemove = move;
document
onmouseup = up;
}
</script></head>
<BODY
onload="eventLoader()">
<SPAN
id=drag
style="LEFT:
px;POSITION: absolute; TOP:
px"><IMG
height=
src="slider
gif" width=
border=
></SPAN> <SPAN
id=ruler
style="TOP:
px"></SPAN> <SPAN
id=up
style="LEFT:
px; POSITION: absolute; TOP:
px"><IMG
height=
alt="" src="scrollup
gif" width=
border=
></SPAN> <SPAN id=down
style="LEFT:
px; POSITION: absolute; TOP:
px"><IMG
height=
alt="" src="scrolldown
gif" width=
border=
></SPAN> <SPAN
id=scrollerContentClip
style=" LEFT:
; VISIBILITY: visible; OVERFLOW: hidden; WIDTH:
; CLIP: rect(
px
px
px
px); POSITION: absolute; TOP:
; HEIGHT:
;border:#CC
px solid"><SPAN
id=scrollerContent style="width:
; height:
">
<p>ddd</p>
<p>d</p>
<p>d</p>
<p>d</p>
<p> </p>
<p>dd</p>
<p>d</p>
<p> </p>
<p>d</p>
<p>d</p>
<p> </p>
<p>d</p>
</SPAN></SPAN>
</body>
</html>
From:http://tw.wingwit.com/Article/program/Java/JSP/201311/19964.html
