网页之跑马灯文字特效

zw2004

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var marqueewidth=3003 }+ P$ d0 |+ n$ i  L8 {
//高度2 H3 f: ]# L2 C. C4 t- _
var marqueeheight=25
9 C" M! |( S. ^9 p& s; d  v//速度(1-10)
& W( l* I) K; {0 Gvar marqueespeed=32 P$ E3 V  h: @: K9 P+ t) Q
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var marqueebgcolor="#FFFFFF"
; Z, F0 D5 y" x  d//是否能暂停 (0=no. 1=yes)?
  W" D- \- R: c  s6 S# O' bvar pauseit=1' }$ X; Y. m5 z- p

2 L2 B+ ^0 J) h- Y; C- T//修改显示内容) m% }  R, c1 n% O' e
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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var copyspeed=marqueespeed
' a( k2 {5 w5 U" svar pausespeed=(pauseit==0)? copyspeed: 0
1 G6 f4 H0 g7 f8 _3 q; y, X6 N4 jvar iedom=document.all||document.getElementById. _9 q3 }7 |+ k7 v+ v
if (iedom)
# l, p- c4 Q: i0 fdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
( C+ s5 ~+ ~" ]" r" V" v1 tvar actualwidth='': W% U8 _7 `& Y5 g' D& z
var cross_marquee, ns_marquee
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# p( C/ {6 }2 t) F, L0 J; ?function populate(){% K% h- ~# K: e' e9 Z% L4 G& l
if (iedom){
5 i  k, a, T) k$ h+ kcross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
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cross_marquee.innerHTML=marqueecontent
  j, G$ X' o5 B; factualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){
8 u2 t" ^* u- S( {3 y; m6 Yns_marquee=document.ns_marquee.document.ns_marquee2
' \: g- T* I& w* p, h% R8 Lns_marquee.left=marqueewidth+84 t$ q' [3 U0 C# w) p5 T% H2 Z9 `1 D
ns_marquee.document.write(marqueecontent)
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actualwidth=ns_marquee.document.width# P1 t, U5 ^% ^$ {7 c, o% i
}
7 y3 _8 k, {0 [" V4 qlefttime=setInterval("scrollmarquee()",20)
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window.onload=populate  C7 O/ l3 M9 X5 j; W6 x
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function scrollmarquee(){9 M9 F- Z; X, n+ `3 R- d
if (iedom){
0 z2 o, X8 h$ k9 Y, n8 b" K: }4 Z" V( cif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
1 a' N9 T' z0 ^/ xcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
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cross_marquee.style.left=marqueewidth+8
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( Q0 @% g* C) z' J" z% Celse if (document.layers){7 z" E; W; o/ Y& m1 Z. t
if (ns_marquee.left>(actualwidth*(-1)+8))- I$ k* W: b# L* x9 @
ns_marquee.left-=copyspeed
+ \3 z" w4 M8 h7 g; ~7 Xelse
9 j8 d7 U) f6 t8 t2 e3 Sns_marquee.left=marqueewidth+81 }+ V' x% }) [, j2 `
}
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if (iedom||document.layers){
; {6 e9 j/ F1 v! V2 @2 @4 xwith (document){- T6 ]4 p5 M' R3 Z% {1 t0 n
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
% X" B- j) V5 t7 q! Wif (iedom){
- E; z, C- ]; H- qwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')* q( ?/ T  T. i( I: Y- E: m
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')& Q2 U! q1 P' E/ A: W0 z1 A$ k
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
8 m. X8 ?! e# B8 V  d4 u' ^% Xwrite('</div>')
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else if (document.layers){
! k) ]9 ^8 B) I6 @8 bwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
! @; {. {# H$ i3 hwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
2 I: M5 e+ ]% G8 @7 iwrite('</ilayer>')
7 c/ w) ]$ N) T}
' y+ h1 o" ]0 o1 n9 G2 Y8 F7 W9 U6 Adocument.write('</td></table>')
! E7 W# e# k, X) n) y}
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