网页之跑马灯文字特效

zw2004

//修改宽度
* V! H3 M  a- Z- g- E+ H  Vvar marqueewidth=3001 t: v0 A' \  T
//高度6 {* r* |$ O* m1 L/ ?+ g
var marqueeheight=256 P- U, C: `' F1 I* N( U
//速度(1-10)1 Z7 C0 ^- r* Z' l+ I+ w8 w, P6 s
var marqueespeed=3/ N, d) @0 d( E# O
//背景颜色
, D8 m5 J: {6 b" T! Gvar marqueebgcolor="#FFFFFF"
* A  G& B1 J: ?# y4 Y& i//是否能暂停 (0=no. 1=yes)?/ `1 M, e9 F' s! g9 l  \/ f: i
var pauseit=14 a. p) L4 ~" P/ z8 \6 h! ^8 \
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//修改显示内容7 e# K6 P. w' h) x( z8 v) 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=marqueespeed4 A# ^* U% c1 H0 ~
var pausespeed=(pauseit==0)? copyspeed: 0
5 P$ D& p6 x/ b: }: [6 Mvar iedom=document.all||document.getElementById
0 p% @: b1 W9 S: Bif (iedom)8 [& }3 f' ^/ ]. ~7 C1 P( d
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')6 V2 ]5 u) a# l) D7 @! q! Y
var actualwidth=''+ g0 E' @' X2 a9 j
var cross_marquee, ns_marquee
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function populate(){
7 F9 P3 u, w( T9 i  L! Rif (iedom){' ?# G; o. k% h9 v+ x6 I! d8 D
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
7 v+ b8 S4 D) x" Jcross_marquee.style.left=marqueewidth+8* e4 Y' Z  x7 u( y/ S! {; E
cross_marquee.innerHTML=marqueecontent; w' D- j6 n$ a3 c
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth% Z3 H. V$ D, w/ O; a3 q% S. ]- ?
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else if (document.layers){
! O- S6 B; U: q/ Z+ Uns_marquee=document.ns_marquee.document.ns_marquee2
, g" q6 b) b- ~" nns_marquee.left=marqueewidth+8
, w% g2 F, m) [: W! C7 {& B, fns_marquee.document.write(marqueecontent)
- d4 K4 Z5 _! g2 _% sns_marquee.document.close()0 E* c" f: F# C0 c& b$ K) a( I8 `9 y
actualwidth=ns_marquee.document.width
  _% p6 b- C8 Q% }( ^}
3 O- S- r  O9 ?. _/ V# ~5 c0 mlefttime=setInterval("scrollmarquee()",20)
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window.onload=populate; z1 v0 d7 [( @) X: T; [
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function scrollmarquee(){) O, S8 K5 j9 e
if (iedom){
: }5 ]- u2 K' J! M& ]8 z, g' mif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))' z2 `; s# X( [& |: `5 F
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
$ P; u" u- L2 v1 I6 J2 k7 Nelse$ ~) L" u5 _8 ^+ P8 L7 [
cross_marquee.style.left=marqueewidth+8+ a$ M  E. R8 j! R  E6 o8 o

% [* i: q4 b2 k- k" h- A}
; v7 \, l- r9 C* Y( d! Velse if (document.layers){
& U3 x% L4 T$ T2 j) D( bif (ns_marquee.left>(actualwidth*(-1)+8))
4 B) F5 T. V3 \) f( x# |ns_marquee.left-=copyspeed9 Z( {# L2 p& [9 O
else  `! ~! L) C7 g; c( c$ h& P1 v5 G
ns_marquee.left=marqueewidth+8
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if (iedom||document.layers){7 C- d* F7 |+ Z! M0 a
with (document){
& O3 i8 e7 m3 {( Z' Idocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
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write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')! A, W3 q: m7 @6 Y4 P, o8 E
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
( B6 D, U, `  }& a+ F( q' K& B( jwrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')( o: }3 R6 a# M
write('</div>')
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else if (document.layers){
6 X' s3 o/ ?2 j: D  cwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')& w( j1 W0 G% G, R+ Y) e
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
- j& u/ k5 L% \- Y+ O2 B' ]write('</ilayer>')
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( S; p4 U, Q$ F# Ldocument.write('</td></table>')& X2 G- m' g4 K6 i
}
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</script>