网页之跑马灯文字特效

zw2004

//修改宽度
3 A4 S! X7 D5 I9 y3 Pvar marqueewidth=300& W* @8 i2 I, x; d; q
//高度
4 U& G( ?4 K9 I$ z  V, ivar marqueeheight=255 |! y0 g9 x2 `& Q7 z
//速度(1-10)( F( k$ I! x% Y' s
var marqueespeed=3
$ i  S9 D% w. N/ ?# n; t3 c+ X//背景颜色
8 T, S$ O2 b4 Ivar marqueebgcolor="#FFFFFF"6 p: }0 R4 z9 e8 w4 B0 E
//是否能暂停 (0=no. 1=yes)?
6 f( O2 K8 z$ T/ Z" E6 ?8 fvar pauseit=1- ^$ C' u4 P0 P: Y
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//修改显示内容+ s: S: e" _/ Z2 I2 S
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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2 S7 [/ s! M; P" Z' J////下面不需改变////////////
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var copyspeed=marqueespeed: |( Q/ G, g$ Q  t" q9 `+ Z
var pausespeed=(pauseit==0)? copyspeed: 0; {  H4 {3 s: u1 J: A# P
var iedom=document.all||document.getElementById
8 K9 e% J) @5 m" _3 z7 M) V2 L9 S9 ?/ nif (iedom)0 X8 C  F- q/ n' z6 e! n
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')8 S8 S+ t, w9 F. R. A' e# R
var actualwidth=''% d% e$ E2 w6 Q1 G+ `* W1 Y
var cross_marquee, ns_marquee% ~( {! n& d9 k3 t3 i, Z( ^

+ [9 d( o+ R# c3 `9 _function populate(){! z! L. R  S7 X. i/ L" f; t8 c
if (iedom){
* a. ^5 {+ \% a/ ?: Icross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
! T# m# \; @9 J/ s% G9 @cross_marquee.style.left=marqueewidth+8" G" O3 \$ t8 {. v# g/ S4 h6 X
cross_marquee.innerHTML=marqueecontent& d" O4 X4 \0 D" \6 c; a
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
) [( h: N8 y  y% `}
/ u  F1 I* W* s; b9 gelse if (document.layers){, {2 Z4 D8 O3 r  i- |" ?
ns_marquee=document.ns_marquee.document.ns_marquee25 i, F* n  H% {% c- a/ ~! B' a
ns_marquee.left=marqueewidth+8
' `- D* ?5 }0 F9 Y. \/ ]ns_marquee.document.write(marqueecontent)
( [$ {) j- s2 t: O$ T/ D9 e- N: z7 }& Kns_marquee.document.close()/ v+ ]4 ^! ?; T' m
actualwidth=ns_marquee.document.width
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lefttime=setInterval("scrollmarquee()",20)
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0 L( f8 E9 ~- s& j' ]' y6 Ewindow.onload=populate' E, ]% A1 K; U4 O- {6 j
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function scrollmarquee(){
# q& K, N# N' h# a" o7 Tif (iedom){
, u: @- _! {& C1 B2 P8 \if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))# v4 \- ?4 Y7 \
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
) I6 Q8 h. j* K; ?& t# C$ gelse+ {+ s/ u4 h4 s% T# C/ R& C/ k' V
cross_marquee.style.left=marqueewidth+8
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else if (document.layers){
) S5 U. u8 g% j4 I1 F# n; Jif (ns_marquee.left>(actualwidth*(-1)+8))
* `. o1 E/ ^* c9 ]$ ^ns_marquee.left-=copyspeed
* X* r0 D. A' \- b( Kelse
0 E+ J8 E8 D+ ]/ ^6 [ns_marquee.left=marqueewidth+8  @; p: l3 ~& o
}
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7 `9 {$ E2 y/ _5 b6 u" Q# M" Tif (iedom||document.layers){
1 w* b* A+ f2 c4 Iwith (document){! ^% }; i  n" m  d# H
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
" ]! U6 r" \  ~6 eif (iedom){
% G. T; p9 H0 Q$ n9 i1 Cwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
  k+ C+ o* T4 \write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')( b2 ]- m7 j* }6 Z$ K. b
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')! }( g/ _* s2 ^5 B
write('</div>')
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else if (document.layers){
( N8 w2 B# `; v( G6 C# E$ X& y: X) Iwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
0 D& U/ q# l" Q1 Y7 D% f! Lwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')  p7 h2 j! m' [: S/ x% y$ e8 t
write('</ilayer>')4 I4 Q1 E( e& v% C+ Z( ?, O! l
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document.write('</td></table>')
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}
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