网页之跑马灯文字特效

zw2004

//修改宽度
" W3 W- _' P& h7 K8 Qvar marqueewidth=300
+ M1 H* @. F( T$ n+ D7 u* i//高度8 K! w$ b" W% s3 T' T
var marqueeheight=251 r0 ~9 f; ?# b' d! a! i
//速度(1-10)' C+ x- k  f. K* c2 d, p
var marqueespeed=3
% J% E) ~- C) }) q6 j( h//背景颜色
1 m& |( ]! s9 x# X- qvar marqueebgcolor="#FFFFFF"
2 v7 z, D* s: C//是否能暂停 (0=no. 1=yes)?- D+ J& g7 X' X
var pauseit=1
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//修改显示内容
% s4 M3 |; G% y% ivar 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
% ]2 |2 I* F( O  y% D( y4 G" ?var pausespeed=(pauseit==0)? copyspeed: 0) ~) Q8 W$ a7 o7 _# q# J1 @
var iedom=document.all||document.getElementById6 z- i: ^& `% X: Y2 h+ {/ y; |5 Z
if (iedom)
- W$ t# E, O: R* Tdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')2 R, B( c3 r0 Q5 y! b. M
var actualwidth=''
1 J# Q% z: @* |var cross_marquee, ns_marquee* {! ^8 f, {1 Y1 w0 Q/ U( {3 p# @
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function populate(){
+ T" o1 n, }( `. |& Nif (iedom){+ H- e* Z& R7 y# F6 }& F9 u
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee$ Y+ a/ k! ^' T5 h, b
cross_marquee.style.left=marqueewidth+8
! A# c$ F0 E9 f* ucross_marquee.innerHTML=marqueecontent
: ]% F# L1 q' T6 t6 F7 Factualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
% n/ N/ c. S( @7 O$ G}. r# v: r1 P: d, Q& T3 ?
else if (document.layers){
  E: {. n& y7 {ns_marquee=document.ns_marquee.document.ns_marquee2
! e1 }( r8 U, U2 hns_marquee.left=marqueewidth+83 B7 G2 F4 x8 Z/ V; [1 D' N8 l+ E
ns_marquee.document.write(marqueecontent)
& j& ?' e6 K' uns_marquee.document.close()
) y( {, ?9 [5 z; b% {, U+ A5 _actualwidth=ns_marquee.document.width
3 A9 P) P) q9 M' e/ x5 Z3 [0 _/ Z}
& {0 r- U  R, {. t' ^0 y, O  flefttime=setInterval("scrollmarquee()",20)8 D. e! G/ b5 n  ?- z/ s/ J) \
}; I: D1 A2 J6 I
window.onload=populate0 m  `0 v( T# y$ z: g0 y& K$ y

& |- o( |2 D; S2 ]function scrollmarquee(){) m" `" }+ q7 Q$ D9 l3 J7 c) y
if (iedom){
8 O: D0 C3 \1 v: N' {if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
/ S+ O& L3 H) I/ P/ _  {0 w3 ocross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
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cross_marquee.style.left=marqueewidth+84 J# r5 @7 S' T* O) v
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}
: U: u1 t0 h. m. H1 |! Kelse if (document.layers){3 J( }& V# O) A. N8 _$ j% U0 c
if (ns_marquee.left>(actualwidth*(-1)+8))" m# S  A; K; r5 ?8 [( L
ns_marquee.left-=copyspeed
0 }$ n, o; u' s, O2 n" O' i; {else' S# k8 h2 n7 ~: x
ns_marquee.left=marqueewidth+8
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5 q1 R1 M$ Q; Gif (iedom||document.layers){
6 Y! R0 _7 x) L# m0 q2 I, mwith (document){- A8 U/ W. x3 _' A2 @  K$ ~+ Q
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
* ~( q: ]2 _  r2 |9 W" v' P4 Eif (iedom){! T  u0 j8 M. I: H; w$ @
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">'), L& ]1 [8 _. o6 H1 e. U! K8 ~" t
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')& ~9 {2 ?0 m+ s
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
; n1 l  u3 C3 j  @+ |8 a* i& `  Mwrite('</div>'): d. r8 L: _8 D' [# F( x, Y
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else if (document.layers){
# i% ^- W1 b/ M. H! ], |$ ^write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')' x! U/ f- N) a; e
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
3 V1 E9 ~$ d+ g/ mwrite('</ilayer>')
: y5 x+ I$ ^1 Q- @) ~& Z}
3 W9 L8 f) |& d/ o% U% Tdocument.write('</td></table>')3 C. r- d. J" F* ^
}; H+ m& e8 T, Z
}
. R' q+ l, o1 n3 r. X: m</script>