网页之跑马灯文字特效

zw2004

//修改宽度2 c+ P; _# O) K. r* s
var marqueewidth=300
# J3 N$ V8 h% Q3 [  a8 a//高度
' X$ C  |7 N% D% M; ^* ~var marqueeheight=25
( r3 S4 d& G* z7 c//速度(1-10)
, t: d( p; C! s0 ~, }5 Fvar marqueespeed=3/ `: ~9 U+ Y! Q9 r% I# r! q7 o; X
//背景颜色- o6 Y8 n( Y3 H7 l' c1 z/ l5 t8 j  A
var marqueebgcolor="#FFFFFF"
8 B. R$ ?4 `0 m//是否能暂停 (0=no. 1=yes)?- F4 i, F& G$ |8 w$ `" q
var pauseit=1% }8 U2 o' t2 M1 X

, ]& r6 X# z' W! Y( e( I//修改显示内容3 p* {) s; H' y$ J6 X1 Y/ A
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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; ?, ]3 \6 `3 q8 T$ q" b" q$ i////下面不需改变////////////
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, j' h* C6 H7 |" }var copyspeed=marqueespeed
- A1 V" l3 u$ i  S3 |var pausespeed=(pauseit==0)? copyspeed: 04 y( i' G3 d: _, i8 P
var iedom=document.all||document.getElementById9 o. s3 Z$ t% p
if (iedom)  j4 w: x9 y, U% ~+ V
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')5 F. T% X. A4 L# H
var actualwidth='': e, z/ o7 t: a& [
var cross_marquee, ns_marquee; p) Y$ E  N; D4 H+ n
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function populate(){
5 \8 q* V: U6 J; F" V6 fif (iedom){
. g: G1 c' E' ]. v: c6 rcross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee6 h2 C1 c3 n  M' O7 U
cross_marquee.style.left=marqueewidth+8. h1 Y) R. D) J2 m
cross_marquee.innerHTML=marqueecontent
& N2 `/ e: w  e# @  ]actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
; P5 P# j# h/ q}% a) c: {5 T2 K0 |" f7 {
else if (document.layers){
7 L( ]' B* l1 O3 M  _, Gns_marquee=document.ns_marquee.document.ns_marquee2# X/ V% k8 X% i7 z9 o' G
ns_marquee.left=marqueewidth+8
3 ]6 [: @& O0 k4 |/ `" b# Ins_marquee.document.write(marqueecontent)3 `0 U9 K' k) T1 J
ns_marquee.document.close()8 z: _0 u3 O, P2 x
actualwidth=ns_marquee.document.width
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lefttime=setInterval("scrollmarquee()",20)! t0 f& I7 k1 X" c, N
}
; `. j1 d: ~& S8 w- e% R8 P  Z  `window.onload=populate2 {' U$ M  H+ D; O. X

+ h- |0 X. w+ m9 Y& I8 cfunction scrollmarquee(){
& b1 i- u4 E/ S1 [' ~if (iedom){
+ n0 e8 T! y3 j  ~if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))* {- a# h5 T0 s0 }
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed$ G* |# _- I* Q6 _& |3 o& N
else
  h9 v' u2 ~9 Z, T+ Zcross_marquee.style.left=marqueewidth+8+ k5 Y$ \8 a6 `! L- v# U
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else if (document.layers){3 [% S2 z% ]2 e+ L
if (ns_marquee.left>(actualwidth*(-1)+8))
4 k1 @, `# ~4 Q1 S' ~" u; [ns_marquee.left-=copyspeed  {* c) P8 _% ]) V" Q9 r
else/ `3 b& l7 S- j6 Z3 P9 L7 w0 m2 J
ns_marquee.left=marqueewidth+8
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}
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if (iedom||document.layers){! f; l1 B; k$ z! U
with (document){
, C3 S% ~. z: _* Ldocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')% F5 O/ g0 }4 y, X
if (iedom){7 T. k- s" J$ q& K
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
% W* v! r8 j0 t$ [% [. S* ewrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')1 o/ |+ K; W. [" B
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')" y' I( H6 X0 ?" M9 F" a  c
write('</div>')
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else if (document.layers){
  B8 y( R. |/ a  I- n4 i( ~write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')' r* U- C; A. s5 F7 }: p6 P6 d* E: ~
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')# H5 V7 k  S$ l5 @5 N! o; ?! q; L
write('</ilayer>')
5 i, n9 e, C& n  l5 R}
5 \  ]* {* K7 p( ^document.write('</td></table>')
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}
/ p1 w6 }& Z# z" I9 P% S</script>