网页之跑马灯文字特效

zw2004

//修改宽度
. i! a) b) d: q+ b: _var marqueewidth=3006 p- C$ G8 H3 _" c
//高度. F, |4 |" w: J- v: u0 b
var marqueeheight=25' @8 ~! F! G- ]# n
//速度(1-10)$ w- Z$ `' H: \- H! C; L+ A! F% r
var marqueespeed=3. S4 W- q! S8 G2 \9 i1 p
//背景颜色  e% p; D' p* j/ {- a, M3 H+ d
var marqueebgcolor="#FFFFFF"
1 g7 [9 C6 m( A6 T/ V//是否能暂停 (0=no. 1=yes)?
! K+ y8 F- n- E3 z( Yvar pauseit=13 M! Q8 {0 f% b

& x1 y) |) e+ {% [  M//修改显示内容, u$ J# F) O  v2 R" 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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6 t7 B  q. H- E////下面不需改变////////////
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( K2 @2 F2 V  r' W' H2 t' k$ v' Wvar copyspeed=marqueespeed
; a% E) g! K6 H" j3 ?var pausespeed=(pauseit==0)? copyspeed: 0
3 q8 I+ B  |0 o* X! _+ wvar iedom=document.all||document.getElementById
7 a2 K2 x" g; X7 Uif (iedom), I0 M8 M; V+ }% f# a4 x2 C
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
8 C% q9 U3 ]! R6 Q9 x% E5 C1 U+ `0 Yvar actualwidth=''
" v2 A3 W3 J3 Z" x7 t2 qvar cross_marquee, ns_marquee
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" a8 x$ i$ c  N$ F8 n' Ofunction populate(){) t* P  v5 b8 Q! B+ s
if (iedom){
8 J( c7 ]! I0 F9 ?cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee" x: j! @  c# D/ c# x
cross_marquee.style.left=marqueewidth+8
( n# I0 H1 P6 V, _) o- Ncross_marquee.innerHTML=marqueecontent2 n# P  s+ V" _
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){
" z, T8 J  m# I2 ~) Qns_marquee=document.ns_marquee.document.ns_marquee2! O! O! o1 @; n3 H
ns_marquee.left=marqueewidth+8- ~( i" F6 A/ ]# w
ns_marquee.document.write(marqueecontent)
1 S& m" G2 Q7 c  Mns_marquee.document.close()+ k7 n) W% ^% z2 {( e
actualwidth=ns_marquee.document.width1 p9 t5 z" w+ {, y
}  i) o* e/ @7 H: f. r  ?8 I
lefttime=setInterval("scrollmarquee()",20)2 k; H0 F7 T8 t9 m. t
}% c9 q% F- n$ z0 U( ]+ {
window.onload=populate
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function scrollmarquee(){7 M. s; a7 y0 T4 ]: `" @! H
if (iedom){7 {5 f! ]" O" \* f8 b) m2 L
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
0 F# e/ C; W% F1 Zcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
& N' S3 ^) C5 nelse
" _4 w, U$ Q5 {/ V; g% y5 C# R* ~4 Rcross_marquee.style.left=marqueewidth+8
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}" {' M( F# M7 l! e; [
else if (document.layers){* h) [; _' V$ l) T" A
if (ns_marquee.left>(actualwidth*(-1)+8))* o. \) n6 \$ k2 @0 @/ w3 t2 Z2 e
ns_marquee.left-=copyspeed
- U+ [3 A) _/ {3 h5 O2 Eelse
/ e) \% {1 H! M0 h/ M/ ens_marquee.left=marqueewidth+8
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if (iedom||document.layers){
7 Z& N/ S  l2 \3 V& Wwith (document){4 {  p3 `, {* M9 Q3 O
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
2 n7 j" M2 g! Z! a2 S! ^if (iedom){
5 N7 C1 v, L6 e! n* U( Uwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
$ i# }/ q4 z" ^; O( i6 |+ |write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
! n4 V1 n' U% Y$ B6 Cwrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')% \* K. T, r# t2 G. ?2 Y5 \
write('</div>')
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else if (document.layers){, E: L! y/ R: p6 y1 u$ f
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')" W- ?" _  X$ N5 q8 @
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')! N2 Y. f4 U; ^8 z2 O3 c5 G
write('</ilayer>')! m. U' W, ^; M) j- g
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document.write('</td></table>'). t/ f0 J2 l) j2 m" G8 r  y
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}$ }4 M0 Z, l8 O; f8 t
</script>