网页之跑马灯文字特效

zw2004

//修改宽度
3 L# `! t' t. C# ~! J' Uvar marqueewidth=300
3 n+ m5 t/ ^# Z# a8 L) w$ V//高度
0 L3 S3 |2 w/ T6 t1 T3 wvar marqueeheight=25) ~+ x/ Z& B0 W7 T5 T3 L- g( f
//速度(1-10)
+ ]( y: ]: y$ K/ |: hvar marqueespeed=3; G0 E6 B# L, u+ U# i0 e
//背景颜色
0 {4 c. ^# r' `% D4 d& A$ J: Rvar marqueebgcolor="#FFFFFF"7 T8 g% Z+ h2 N
//是否能暂停 (0=no. 1=yes)?
5 ~& K  ?0 _6 B2 S$ ~var pauseit=1
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; Y: K# i/ Q! P# F$ ?7 G6 T/ @//修改显示内容
5 O) `" m0 x; R  G7 ~; c5 |; m+ ~! Z" fvar 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>'& [# L& H2 S; j8 V4 n+ w4 w

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////下面不需改变////////////+ z1 A! @& _/ Q: Q! n
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var copyspeed=marqueespeed3 q5 C8 W2 ?' d: H% L6 T
var pausespeed=(pauseit==0)? copyspeed: 0
3 H( w+ V6 y' e* i* R$ \( y! T. bvar iedom=document.all||document.getElementById
/ k. N: @, G: S/ s4 Tif (iedom)0 A5 t1 b# B; f' ^. O' y% G  S5 P
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
* d* Q: I$ L' a: @8 K8 yvar actualwidth=''8 Q+ i% |8 P3 u- ~
var cross_marquee, ns_marquee
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function populate(){4 j( O8 f4 t% ^
if (iedom){
) }$ o$ x- n# q) f  W' Zcross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
, i) z- V5 u) X& Q: ]1 dcross_marquee.style.left=marqueewidth+8
7 @& e# \+ _0 a2 T  ycross_marquee.innerHTML=marqueecontent
! `+ B' C0 U" [3 b' O# S* P( lactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth4 m* A$ T9 P* z2 _0 a6 V
}, x/ Q, y& J3 L- _& f
else if (document.layers){
5 ]. x4 o% o, J" v  C6 M/ xns_marquee=document.ns_marquee.document.ns_marquee2
0 ?, g& B6 T" v/ M) U7 I( jns_marquee.left=marqueewidth+87 u0 f, Z5 X3 D$ a# D
ns_marquee.document.write(marqueecontent)
/ W) {  ?. U4 T2 E' Q2 M8 Ins_marquee.document.close()0 `1 }: T4 Q3 u; {; V8 E
actualwidth=ns_marquee.document.width
, c/ R2 [3 a! W8 n0 ?}
) F' n3 U# v+ H! R7 c# O, Zlefttime=setInterval("scrollmarquee()",20)
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window.onload=populate
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function scrollmarquee(){
( ?0 x5 U' f( B1 ?& Rif (iedom){
6 ^- w) \" n& n$ o/ nif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
, Q3 k2 ?2 K4 a3 qcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed; F+ R' r) Z! S4 u
else
! O# I+ M  b. Y2 L1 ycross_marquee.style.left=marqueewidth+81 p7 g$ u  m, n8 O  z1 w
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}
! H- [: @% ^+ X7 d! m9 Ielse if (document.layers){. ~* b- X8 d8 c/ ?) @
if (ns_marquee.left>(actualwidth*(-1)+8))! ]+ z% q8 H( R. h
ns_marquee.left-=copyspeed
6 u  K1 O) J" Z+ A! belse* ~$ e8 f, v6 Z& O9 k/ G6 B# I
ns_marquee.left=marqueewidth+8$ A' s1 p3 O+ E4 }0 U, r
}
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) e* }$ R# F8 z7 P3 uif (iedom||document.layers){7 u9 z; d* S: n" B
with (document){  r1 {8 ?; l/ z5 ?; q; A
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>'): |, {9 H- }1 G# x
if (iedom){
- y, c+ x9 G+ F' |" xwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">'), {1 L# v1 R2 p7 z& a! e1 \' S
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">'), ^: s$ Q4 [: B: k
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')/ g1 u% l6 b4 H0 m, f% k
write('</div>'): H- y$ C$ V7 f# |+ e6 N
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else if (document.layers){# H- X& x4 L8 V+ n
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
% G1 y( g6 @* a2 I2 Y2 fwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
6 D* g( ]: C. T: `4 Y, u0 ^write('</ilayer>')
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document.write('</td></table>')
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</script>