网页之跑马灯文字特效

zw2004

//修改宽度
5 `; u. G8 I! e1 H' B$ Xvar marqueewidth=3004 X5 C! n& x; }2 h$ R+ E  b
//高度0 x7 b/ A* O  b) E
var marqueeheight=25
1 Y5 t) M" P! l5 w7 D8 n& b//速度(1-10)) N5 Z6 a( J' [
var marqueespeed=3& C# [8 D/ n' O: M/ ]/ q  N
//背景颜色" D4 E3 V# @4 Z" k2 H5 H7 k
var marqueebgcolor="#FFFFFF"- c9 X# A4 W& N
//是否能暂停 (0=no. 1=yes)?
0 p$ e; {6 u6 {  [* Z0 B" J" b, R! yvar pauseit=1
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//修改显示内容
, m6 g. x) m4 c7 ]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" Z0 M. `7 }  ?* V( v, j6 b
var pausespeed=(pauseit==0)? copyspeed: 0
  V0 a( r- _4 Avar iedom=document.all||document.getElementById
' U+ M9 g! k1 H  I8 _if (iedom)) }" m- v; e' {. S2 E
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')1 u! A" {3 q- B# o$ l* J4 u7 r4 S
var actualwidth=''
" p3 l8 A8 F5 }9 f/ K* D' P7 Uvar cross_marquee, ns_marquee: ]" N9 e! q5 h; Y6 o* m
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function populate(){5 }& _; N! b1 \, O
if (iedom){4 ~5 k5 V% y( \4 a/ }$ ]7 C, T# `
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
# U, M) N, a, U9 {) P9 ^cross_marquee.style.left=marqueewidth+8
* U2 G# R; f6 ^, T$ Vcross_marquee.innerHTML=marqueecontent+ _7 ^) u# f4 R8 f0 e3 v4 R
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){2 g' z3 _% o  x3 R* Q7 o
ns_marquee=document.ns_marquee.document.ns_marquee20 W% \& K& L" \
ns_marquee.left=marqueewidth+8
& y! r, O0 U, uns_marquee.document.write(marqueecontent)/ p' N* k: B3 n% z: ^- g" C
ns_marquee.document.close()
# X( Q6 W. q! ?actualwidth=ns_marquee.document.width  B% t/ I" i+ B0 v2 t
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lefttime=setInterval("scrollmarquee()",20)$ f4 [7 a8 b. l, e; t
}
. Q2 t& x# W# Y$ R* jwindow.onload=populate: D6 L  T, y7 J$ S$ l8 u% I

- M$ J$ j4 H& hfunction scrollmarquee(){
' z3 d0 N% j0 c! `* p9 @' ?if (iedom){
  q  ]. Z4 z  O3 v7 h' wif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
9 ^  E" P& @  b0 X: L6 H* Ncross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
' n$ ?9 {6 J; yelse
* k2 z- b9 C+ W; Mcross_marquee.style.left=marqueewidth+8
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}) g/ e( b4 q* J6 Z* T
else if (document.layers){+ d! V' ?* v9 L4 Z" G: g: b  n, Z
if (ns_marquee.left>(actualwidth*(-1)+8)): o- X6 Y( T3 r9 e. j6 n
ns_marquee.left-=copyspeed7 }6 a3 s+ l9 [9 ^
else
$ A- {+ A0 Z8 S5 [  e- Fns_marquee.left=marqueewidth+8
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if (iedom||document.layers){2 n! w% `8 b& `$ i
with (document){# R9 k1 V; J( l# _* @
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
- s  S8 Y2 I, F" _  P* Vif (iedom){0 F* ~& y6 L: |# g9 a- B
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
+ L8 ?$ u" O* I, M: g- m2 Mwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')9 e% G% e5 J$ S5 @0 S7 M+ e
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
* r7 ~9 ?* y; {write('</div>')
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else if (document.layers){# W3 i' |+ t8 _% z' q0 Z* p
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
& S6 f' A" q9 W0 u9 ?. O% Bwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
: j- G7 I* R& Cwrite('</ilayer>')& _) K8 G( A- A" v7 S
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document.write('</td></table>')
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</script>