网页之跑马灯文字特效

zw2004

//修改宽度+ @$ m: S6 B( \+ w
var marqueewidth=300
" z2 E/ B9 d2 X- L8 r//高度
7 Z8 o# J" }; r' jvar marqueeheight=25/ i* y' \# s" f- J) U7 S
//速度(1-10)
% _2 i2 E) k0 k/ Xvar marqueespeed=3
1 V1 R1 Y) t) i( G0 T//背景颜色
8 c1 u  @: F7 ~" mvar marqueebgcolor="#FFFFFF"% Y2 F4 u- E  f) ~, z' `. ^1 k
//是否能暂停 (0=no. 1=yes)?) R! [2 E& K0 O6 q# {
var pauseit=1
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//修改显示内容
# h  w* i" q7 i5 evar 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>'& i. W1 ], x) Y: j. l8 b

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% r3 i  p& G3 o, q: W& r////下面不需改变////////////
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var copyspeed=marqueespeed
; [  l' C" G2 p! G: p4 t. h  jvar pausespeed=(pauseit==0)? copyspeed: 0
2 T, h; O" b9 S5 o9 [var iedom=document.all||document.getElementById
- Q" p! B+ q* m6 U2 s: g( Wif (iedom)" s9 s% S) @2 @$ r8 m
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
3 w* m8 t9 v' C& `& Tvar actualwidth=''7 g- ^/ Z" d8 C* ^8 ^
var cross_marquee, ns_marquee
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! [' S4 E6 h' ~$ y; k( h' Ffunction populate(){4 y/ Q3 t" p. ~: B
if (iedom){
% D. X* s; L) y4 ^cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
* n. X0 o# V1 X1 i1 \5 i( a% ccross_marquee.style.left=marqueewidth+8
# `  ]9 c' b1 f" u) S- bcross_marquee.innerHTML=marqueecontent* }* g: ^  e( f6 B  B
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth0 h7 C  }" A) u" F2 ~+ C7 @0 V
}
6 q. w0 f) ]0 h0 n7 m: Jelse if (document.layers){
. G2 c6 r8 m. c0 Ans_marquee=document.ns_marquee.document.ns_marquee2
+ Q: S( L; F/ L& H) _* _ns_marquee.left=marqueewidth+8
; U6 x* Z7 `+ k5 sns_marquee.document.write(marqueecontent)
+ R2 ?$ r5 _/ I3 R& w+ I$ ans_marquee.document.close()) P' N1 ]! ]6 h% i8 P
actualwidth=ns_marquee.document.width8 _2 L7 ^3 P: t2 O1 m; [& N: b
}
1 Z3 u/ o+ T4 ]6 I! klefttime=setInterval("scrollmarquee()",20)  c( j8 x" v5 i3 g5 k* [" f# O
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window.onload=populate
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function scrollmarquee(){8 j3 |+ b5 N- t) Z# S! _
if (iedom){
5 E- @3 b& q) ~" }3 K* Zif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))% P4 I2 K* C2 Y' Z
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
7 U( `- ^0 }7 [) c: m" I6 ~' Yelse& O0 r! x5 |2 X" Y
cross_marquee.style.left=marqueewidth+8
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}
* N' l. e6 m. z, R2 pelse if (document.layers){
$ |3 D7 c' G/ K. A4 ]if (ns_marquee.left>(actualwidth*(-1)+8))
! n5 C+ N% |$ i* p5 M; ^0 a8 qns_marquee.left-=copyspeed
% T+ j- b# g& Y2 w2 f, xelse+ o- A  E* \; W+ B" ~( P
ns_marquee.left=marqueewidth+8
& u. N  K! {2 ]}
/ Y0 P4 m: d3 S8 J+ [& U}
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if (iedom||document.layers){
1 R: K3 Z3 @$ I' s; U1 b% J* m& xwith (document){: z* H: m; G/ K3 K
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')( O1 q* L4 B4 L, l- U+ m. ^% q. {. P# Z
if (iedom){
7 k  K# I, D% {4 l3 Vwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')) w5 X8 ?+ A' h) N! z: h, @7 ~
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
, B. H6 [8 d- ?6 X( [, x9 `( cwrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>'), ~2 P3 i1 z/ s" ?: d% ?
write('</div>')
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else if (document.layers){3 C; i/ `% J& D' h0 \
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
/ c: O* j6 [& ?- \3 P9 g+ \/ r4 rwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
) s( @8 y: O, F; o/ K1 Kwrite('</ilayer>')
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document.write('</td></table>')! c" E$ q) W' u' X6 H# h! s% H
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}
. }( I1 l. O* N: G3 p</script>