网页之跑马灯文字特效

zw2004

//修改宽度- X# M; {9 `- t+ N8 x
var marqueewidth=300
% ~2 |) `1 r5 A$ k//高度
2 h: F) L3 \) C' Evar marqueeheight=25
3 c  |  O; j# j3 t, b' h//速度(1-10)
: W* {& u! j3 b7 T- ~var marqueespeed=3* Z  n, Y; R# E6 `! y# B
//背景颜色
8 o% h4 V# h* Z8 |$ [, lvar marqueebgcolor="#FFFFFF"6 E$ _  w4 ]: J8 c
//是否能暂停 (0=no. 1=yes)?6 w+ X+ C( j" G
var pauseit=15 l7 }: y6 {& X# @( i; H( ]' {
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//修改显示内容, ?- z* A6 j- `) t# w) o
var marqueecontent='<nobr><font face="Arial" size=2><a href="http://www.jzzy.com/js.asp">欢迎光临七色风网页家园</a>--这里有从上千个网页特效中精选的300多个实用的特效，另外，为了网友更方便地学习，我们还改写和编写了部分的特效，并作了详细的说明和必要的使用提示!</font></nobr>'
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////下面不需改变////////////
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7 `% I; c; d; a' x: K0 tvar copyspeed=marqueespeed* [* Q& G  R! p* w' D
var pausespeed=(pauseit==0)? copyspeed: 0  R3 E' Z0 G. {8 a' f$ q. z
var iedom=document.all||document.getElementById7 T0 e. j* E+ {1 N( c( @
if (iedom)4 T# u$ G" N2 v4 g
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
1 V1 Y) f0 p" _2 {, M; Pvar actualwidth=''
2 J$ F( R! s. x4 P  P( R  p. Hvar cross_marquee, ns_marquee- U2 D3 x0 n, @6 Q" U! p
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function populate(){3 |% x: N  a( x; O+ ]( x
if (iedom){
  r! `0 b% D: G( wcross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
! {/ C! J- x1 R% F1 {5 u" ccross_marquee.style.left=marqueewidth+8& H6 b% J4 [1 f
cross_marquee.innerHTML=marqueecontent8 X* d. [3 a( @- _7 h  R
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth* Z/ @; U1 T+ v# j$ ]; k
}: X. C% e7 H# q# W$ {
else if (document.layers){& |7 d2 R8 J' y0 R
ns_marquee=document.ns_marquee.document.ns_marquee2# v; R$ G3 _7 x$ j( m0 c5 t' r% Z
ns_marquee.left=marqueewidth+8, B  h& B" U5 Y8 `  O
ns_marquee.document.write(marqueecontent)
( W% x# V4 x8 h8 G, X- q" Z7 lns_marquee.document.close()
- V; g( B8 Q. E# n  \actualwidth=ns_marquee.document.width$ P6 w0 p; X( e
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lefttime=setInterval("scrollmarquee()",20)
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  k5 z& {6 z8 J7 f4 _! fwindow.onload=populate
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function scrollmarquee(){
. f) {2 P8 \% j" J" o) k6 {2 X. ~if (iedom){
, \- k6 ]. B5 Zif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))* q( |1 ^# G/ o( ]
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed2 Q% `1 l- Z3 f4 n( t! {( u
else
) O) Z, d# E7 kcross_marquee.style.left=marqueewidth+8, Q7 W/ \5 f( O
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}
, F  L4 `* g) Eelse if (document.layers){7 ~6 f7 g' w! @; ]* c9 ~; `- J9 b
if (ns_marquee.left>(actualwidth*(-1)+8))
# g0 h' q$ a. R! e$ Ans_marquee.left-=copyspeed# I* ?3 T3 _8 ~: c2 J
else1 C7 h3 w1 w* A/ U. s+ @
ns_marquee.left=marqueewidth+8/ g& A/ Z! {# Q7 h# I" @1 O
}
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if (iedom||document.layers){5 q1 O7 r- A7 }/ F
with (document){" e% g3 x/ K7 a2 l
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
1 s3 j. Y2 N" ]if (iedom){# c$ R  |: Q) U5 F, q3 b
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')0 I+ w" P+ Z) L; z; l
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
( y) \' `( z! ?: h  Ywrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
! ~) M# j; w7 g  ]6 R! z" Wwrite('</div>')
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% s: @+ u( Y. t9 K# e2 g3 Melse if (document.layers){% z' C$ B0 {7 s9 ^" p' [9 E5 e
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')8 h+ D% Z' K4 Z& c/ n( g# S
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>'); D7 I& s; M7 K: {
write('</ilayer>')( r) y& {9 w' y; B4 r
}
1 {7 Y8 a: R. p1 Rdocument.write('</td></table>')
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}
2 {) n9 M) g& U2 O</script>