网页之跑马灯文字特效

zw2004

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var marqueewidth=300* a5 [  v4 o, ^# ?/ A* q9 [0 C
//高度
7 [$ w5 a+ |( Ivar marqueeheight=25
, o: P* K, Z# l7 H* V//速度(1-10)
( Q6 b. b& {6 kvar marqueespeed=3  k  ^8 Y8 E- F$ t
//背景颜色) p' c' d4 ~1 G* J3 R" \* J5 G
var marqueebgcolor="#FFFFFF"
  f! g/ E) @( {4 I9 ?! Y# {//是否能暂停 (0=no. 1=yes)?
9 u+ X: j7 {% w* \3 Gvar pauseit=1& \% b: R* }. f6 ^" {. g. E" Y

8 q6 d7 y, L) z7 S' v# h0 |//修改显示内容, M3 C7 S. B. D; X9 d
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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# T3 E) I" K1 ^9 p4 C////下面不需改变////////////
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var copyspeed=marqueespeed/ P1 Z9 A: ]4 E
var pausespeed=(pauseit==0)? copyspeed: 0
* t8 z( G. `( ovar iedom=document.all||document.getElementById* l% S5 k1 P( Q* V7 o: k
if (iedom)
: ^6 O& I5 U# d9 s7 t/ jdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')' B. x/ J2 Y3 ]7 ~* X0 ~
var actualwidth=''
: ?) R  }7 y; |2 j$ |' E4 ?* J8 Vvar cross_marquee, ns_marquee+ `% A- _5 D5 g1 p" F* T  ^0 [6 Q+ @
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function populate(){9 V) N; J2 x1 e9 A
if (iedom){& h( ^( }" h/ D, {5 ~5 H
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
5 d; U) t; h% H/ f$ i: \cross_marquee.style.left=marqueewidth+84 l0 M9 _5 P! p5 d7 l, B+ h7 s
cross_marquee.innerHTML=marqueecontent
! T/ p' x  Z2 J2 iactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth0 B) u1 X5 _( d2 E# }0 Y" V, K
}  y5 P  E% [! f
else if (document.layers){  z" ?/ q6 U( {% g4 O1 L9 w9 v8 o$ Z
ns_marquee=document.ns_marquee.document.ns_marquee21 |, N5 H& }) s3 a5 }  s
ns_marquee.left=marqueewidth+82 ]) }1 [* ]6 Y
ns_marquee.document.write(marqueecontent)9 T; I- B' o- W2 ]  O: s
ns_marquee.document.close()6 V& D+ b2 K& Y8 G+ @
actualwidth=ns_marquee.document.width& D, _, `% V5 m; {# C9 R4 i& L8 ]
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lefttime=setInterval("scrollmarquee()",20)+ S2 ?) \8 F- M9 z  S+ \
}
! T  s. u/ b2 D. |& jwindow.onload=populate8 }: Z. g6 Z# ~- [

0 E4 x! z* z! `function scrollmarquee(){
2 }) I8 ~) I9 x( A+ Pif (iedom){
0 ], i* {+ V' E% Z$ f5 Rif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
1 i8 E/ w* P/ \! R5 |cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed7 u$ o5 |5 h: W
else
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7 ]& H* n8 L7 A; Y: kelse if (document.layers){: p% n1 Q8 \! ?: a5 T6 d9 e
if (ns_marquee.left>(actualwidth*(-1)+8))0 n4 ~2 D" ], E5 e$ ]- Y9 B9 Y* A
ns_marquee.left-=copyspeed* |! W- N) z7 u- P5 k
else
2 |5 P/ W5 \  L3 c5 E: sns_marquee.left=marqueewidth+8
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if (iedom||document.layers){1 |/ ]+ a* i! O8 T1 R
with (document){, f, c: o2 j+ F4 S' c# O
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
2 p% e7 q. M7 f/ _9 V) A0 Xif (iedom){) D9 [5 d; Z7 |; P" Z9 M
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
: h5 i" x& v1 G) K2 Kwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')0 N" o9 O8 k& J' O- E
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
; S+ m0 n# g: f- R) i) A8 f, ]' nwrite('</div>')
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: C* K' [0 M# P! P& v1 u% x4 telse if (document.layers){
2 F# ]: V, V' X) R- q8 Fwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
) @" ~* ], P  F9 u' V3 iwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
  ^3 U  _, @; a$ y7 V2 Pwrite('</ilayer>')2 J% M3 n& g  }" e8 j0 c
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document.write('</td></table>')+ n; R* u5 \, C3 ^/ K* |2 T# G
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