网页之跑马灯文字特效

zw2004

//修改宽度
6 P* w7 w. e0 w% vvar marqueewidth=300+ i" A8 C2 t" M; N9 l+ f
//高度* K8 g7 v" c; s3 }# x
var marqueeheight=25
7 ]4 p: K2 T1 U//速度(1-10)# u; s# J; r1 w, g8 ~/ ?' d0 A
var marqueespeed=3% h+ {2 Q, s0 F: y, `
//背景颜色
* a! R  e! B7 T( z: bvar marqueebgcolor="#FFFFFF"3 t. G- K( a- `3 }5 E+ p
//是否能暂停 (0=no. 1=yes)?3 I2 ^/ t' o+ I& i5 c6 G
var pauseit=1
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( P  k  k: s8 |! D1 Y# F: u4 b//修改显示内容
! O* E3 v3 z2 p4 W$ F5 ovar 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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, ~* v6 \/ F( t4 F////下面不需改变////////////
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1 @% r6 }8 @1 w/ Y4 e: J) hvar copyspeed=marqueespeed
" `" P5 T; U0 g3 }+ ?2 H' R/ E4 H+ Fvar pausespeed=(pauseit==0)? copyspeed: 0* C7 v( l; l& R- H) Q2 I2 _% W( l
var iedom=document.all||document.getElementById
1 _$ Q* w0 n8 I$ r+ [if (iedom)
. r! u& _: Z8 m% f9 cdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')9 l. H0 N: `8 t" p/ D& _3 C- L
var actualwidth=''
' A4 p1 e& Y5 P( Nvar cross_marquee, ns_marquee
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. g- ~8 y6 q1 }) w! A: tfunction populate(){
7 ^& Q9 F6 \8 Dif (iedom){& N* a( S: q* E: d8 N. w7 A; C, [
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee3 R6 B2 ~0 o+ N2 X, |1 w
cross_marquee.style.left=marqueewidth+8. V) R: B1 I( i+ H8 f
cross_marquee.innerHTML=marqueecontent) k/ I+ }  \1 A: Y! Y! n- h
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
- `6 z$ N3 r; Q8 t' q8 }  H& O5 V}- x, j; K: p: f4 o6 v( v; ?( ~
else if (document.layers){. C) O: w7 e: W
ns_marquee=document.ns_marquee.document.ns_marquee2. L4 [' M# s, J5 V7 q
ns_marquee.left=marqueewidth+8
! T8 q; Z: c' Nns_marquee.document.write(marqueecontent), ]2 x2 _5 r; B7 _6 g7 d
ns_marquee.document.close()% J# c7 b% Z; @: i
actualwidth=ns_marquee.document.width
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lefttime=setInterval("scrollmarquee()",20)
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window.onload=populate: K; q. L% Z2 X, |# L
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function scrollmarquee(){
( ^& O8 }/ X* O6 Iif (iedom){9 o. y* K& f4 S. b; B  U
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
- ?% t0 O; I" J4 qcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed* y* N) r! L) \, l6 H" F3 i- N4 w
else8 r  T* R4 Y/ n& d; o  Z
cross_marquee.style.left=marqueewidth+88 ]" B6 o# ~; G8 l( [8 A3 T* U9 w

, v2 f  i0 O1 }: u& v1 Z}
/ I. m1 L. z4 I+ velse if (document.layers){5 L  {! U  c) r7 s; I* n# b
if (ns_marquee.left>(actualwidth*(-1)+8)): A3 k, N9 z3 z' [: ^1 C
ns_marquee.left-=copyspeed
9 E, b1 W6 @2 P; n0 |' d* Z( e; jelse: z2 \9 A% m# r
ns_marquee.left=marqueewidth+8
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}
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if (iedom||document.layers){
2 ~3 k$ W3 V' M! @# H9 H3 O9 iwith (document){
" X# ?% \3 ]# y3 C* qdocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
* T" [$ y0 J+ _  \" tif (iedom){
3 h% Z$ i6 _% b( M9 L/ uwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')6 `$ @4 c9 J+ W
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')' _0 b0 P) K5 Y& }, _. e! {! [
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
* C/ A0 u2 L4 fwrite('</div>')
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else if (document.layers){& M1 E3 t1 n/ m7 s$ f6 k! i& P
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
$ P! S, I% O7 i. fwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
0 P: X$ m* ]" iwrite('</ilayer>'); j1 t6 O! [# l/ @: ^9 q
}( }. ]% ^3 |! W# Z) z3 N5 E
document.write('</td></table>')  |7 O/ U4 u9 b: S3 I
}
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3 ?) ?4 \6 r% a# Q) N% z</script>