网页之跑马灯文字特效

zw2004

//修改宽度
( Q( O/ u9 M' }9 i; W$ C) J4 I1 L& hvar marqueewidth=300
1 d) d" [5 ]# y//高度
$ p( x4 `- `7 W. Y9 ^& X0 |var marqueeheight=257 I2 Q: c' S! [# w4 K& U8 ]# p
//速度(1-10)
1 p2 h1 ~7 t5 h. Z9 Qvar marqueespeed=3
* T( C" z* g7 S  u* t* |. ^' o//背景颜色. N8 U, U+ t2 p# W. _- M
var marqueebgcolor="#FFFFFF"
/ U& o4 i% T4 u, [9 n) y7 b//是否能暂停 (0=no. 1=yes)?) t. |, G- k. o7 h. N7 c
var pauseit=11 k: ~" w0 e% @* ^' U1 M# k  z
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//修改显示内容; l& w! y. H) x& w8 C" U
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>'; r+ ^- p4 Q( _$ ^9 m$ s3 c

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////下面不需改变////////////% x0 k! ^; L  F) r+ ^4 m9 h

; C$ T5 t& `% h/ a  k3 Q+ v( [var copyspeed=marqueespeed
9 N' f9 j' i* m% H- }1 tvar pausespeed=(pauseit==0)? copyspeed: 0
. k! R  E$ I% f) \' F+ [9 K' avar iedom=document.all||document.getElementById
$ T, p. l7 ?" n' d! y% n5 W( M4 Eif (iedom)
: ^' U" v) A9 R# s1 |  G2 Tdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
1 K3 L1 J6 X" h; D6 t0 J2 S, bvar actualwidth=''" b' B) Y' `  a% Z1 A2 ~( N
var cross_marquee, ns_marquee
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function populate(){4 E9 d/ }( K/ m# ^( z5 n* U7 H
if (iedom){! Y5 q! O. ]# I* i! L4 j7 |
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee1 y. F% N# t. X+ c8 R' C
cross_marquee.style.left=marqueewidth+83 Y5 W" Y8 O, N( r& v6 U
cross_marquee.innerHTML=marqueecontent. w& S* F" c% Y) A7 C5 y2 ]$ O
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){) ?' K7 j1 s9 l7 y
ns_marquee=document.ns_marquee.document.ns_marquee25 Y( [. t% m+ k( A
ns_marquee.left=marqueewidth+8
- z. R! |. Z6 Vns_marquee.document.write(marqueecontent)
. g. z3 k2 A4 W9 N, Cns_marquee.document.close()7 k/ T5 n9 z/ `; Y# o8 E
actualwidth=ns_marquee.document.width" J7 G; ^/ c5 Y( `
}
+ ]% A# z: X1 L/ L4 [. s( W* x9 A1 m) \lefttime=setInterval("scrollmarquee()",20)$ a! H6 v( M- d) H( Z. d
}
8 o6 P0 ~0 O: r' w% Y- wwindow.onload=populate
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1 H8 v' n8 l: x4 _( @function scrollmarquee(){( p/ ^- B1 A$ ^$ T8 G5 a5 {
if (iedom){
2 L1 j9 {  n! G0 N/ Sif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))/ d& L+ G& C1 `, _6 P( E  r
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed+ M7 r: O/ Y$ [
else
# y; M+ @' ]8 G% G& Icross_marquee.style.left=marqueewidth+8
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}
% R% Y% L6 S  m8 m5 m9 J5 _, Xelse if (document.layers){. F: i! \' k- H: w8 w
if (ns_marquee.left>(actualwidth*(-1)+8))
4 E! D( U3 {. f0 z% Ons_marquee.left-=copyspeed6 d# q0 X" i3 J: l+ D
else
0 J& m- i9 T( E7 cns_marquee.left=marqueewidth+8
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}
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if (iedom||document.layers){
: ~8 d( a- E9 d9 C0 `) dwith (document){; f" Y4 U/ v- P
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
" F; B3 T# _' Kif (iedom){
, m9 _# |9 O6 ~write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')5 ^$ q$ [6 B% H- r
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')% R! p( i: j7 z
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')! E& ^2 B6 ?7 {( x- w
write('</div>')
+ |' [+ L; Z* C" g}
) @( S. K8 H6 d6 L* E) relse if (document.layers){2 w: O9 V4 Q, [3 I
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
5 @# g  Q* L. l* Y% d1 cwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
  a* @+ x  h; z3 `1 K, uwrite('</ilayer>')
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document.write('</td></table>'): ^" ~( d* g, F/ u! L+ d9 v. L/ z
}
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6 c) e) B3 X/ z% C" e+ `</script>