网页之跑马灯文字特效

zw2004

//修改宽度
' v+ g9 j  q' I  r: _var marqueewidth=300+ Y1 x7 T# @: G4 r) g! h  u3 @* A
//高度3 g6 b% v- u' h' z6 Z# a  M
var marqueeheight=25
! [8 W$ W* W6 a: n2 v% G1 \//速度(1-10)9 D' }6 L) W# H1 b
var marqueespeed=3
6 L4 y9 @& \8 ?5 H8 W3 o//背景颜色: i6 y0 x1 a; v# m8 |
var marqueebgcolor="#FFFFFF"; O5 C% Y5 n; r0 ]
//是否能暂停 (0=no. 1=yes)?
1 J0 n! t5 X8 [* v/ _, W0 q8 mvar pauseit=1
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! [- @% h+ g4 w0 e/ V4 t4 Z) x//修改显示内容. j( I+ ~0 g4 Q: Y7 d) R
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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////下面不需改变////////////$ Q8 H! l& Y; }

9 p- D% d8 D( S8 u: kvar copyspeed=marqueespeed$ u1 l' X$ ^( k8 Y7 q
var pausespeed=(pauseit==0)? copyspeed: 0
; m/ Y$ ^/ T7 [0 D3 ]var iedom=document.all||document.getElementById  @: Q( W' s  |: z
if (iedom)( ]2 b% F' g* p. {$ B
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
6 T) @9 F- r: `, s0 fvar actualwidth=''
: ?$ ~2 u7 E" ]var cross_marquee, ns_marquee: g/ }7 ?) a* @4 q; Z4 `4 f
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function populate(){8 ~# O: W8 G1 _, X' Z( C. Z
if (iedom){
# J# A& e$ V' n  Q# W! e" B2 zcross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
; m6 l/ g  U$ Y; w7 T: xcross_marquee.style.left=marqueewidth+8
, Y9 c8 C: y" K) T2 [2 n- Bcross_marquee.innerHTML=marqueecontent2 _' [. @, U! g7 N. M+ Z0 Z" ]: L
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth5 u; a% \8 [+ j
}6 Y8 h. Q( K8 w9 {$ ^4 C) d
else if (document.layers){1 s- _2 ^: q' f1 C9 O; T1 @9 n
ns_marquee=document.ns_marquee.document.ns_marquee2( W9 q3 _5 Q/ c1 X0 w
ns_marquee.left=marqueewidth+81 |5 u$ T6 Z9 y& }. s8 F9 R* A
ns_marquee.document.write(marqueecontent)5 e- p9 U- C; m! R/ X# t6 m
ns_marquee.document.close()
! b" J" W7 i4 W( t' n: ^actualwidth=ns_marquee.document.width  i2 `; y/ h* {. Z3 Z' l8 C+ P
}9 ^2 }% l+ f( L. ^, ]' b% I
lefttime=setInterval("scrollmarquee()",20)  h, Z/ r; G' M, W/ Z; Y9 ~! g1 U
}" Z; p% V+ ?+ a; L' T
window.onload=populate6 h% Q9 I8 |- b# H8 r9 s) D; d
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function scrollmarquee(){( r( [" @" F7 T6 S, h
if (iedom){
* A& |  z4 c, R7 M3 d+ X, b7 |, @& pif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))  t( q  D( m7 B) F/ r- h7 I
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed0 A1 }( a/ N' l1 z" _( f& k
else# w9 Y9 s, l3 g7 p8 ~- s( r) c
cross_marquee.style.left=marqueewidth+8
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else if (document.layers){. ?3 B! b* n6 S; S
if (ns_marquee.left>(actualwidth*(-1)+8))# J8 D+ ]5 F/ m/ Q: v. a+ ?; [
ns_marquee.left-=copyspeed
5 M/ ?+ t& Q2 t  ?* Y5 T- `else
& ?3 m5 Y3 Q% f+ J( Vns_marquee.left=marqueewidth+8! t/ s( }7 p! R* V7 H- y
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}
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. y0 Z! F- Z/ M6 u6 X2 m4 ^+ y0 mif (iedom||document.layers){
. F6 v: s; z5 B# Cwith (document){1 R& ~) Q1 c, E
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')5 S3 m1 m, W: r, {: s0 b
if (iedom){8 K/ S6 ?* O$ k: @  j) z
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')% Y8 P- B5 C1 L/ A' k
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')  \( }1 F+ b) Q% p/ D* D
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
% o" v( I. s& a* ]& dwrite('</div>')7 H- S: N6 `( Y2 r2 f- E0 |
}) Y6 b  K( b8 d5 k4 p5 X6 G  @0 t  Q2 Q0 T
else if (document.layers){. a6 w8 ?% l7 K, L! U% b  q& K
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')- j1 t2 T  p/ k$ a2 i. T
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')& t/ |1 H- b2 t# N6 v
write('</ilayer>')
: x' ]: ]; z  G0 F  K}
( d3 d, z% B0 adocument.write('</td></table>')
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</script>