网页之跑马灯文字特效

zw2004

//修改宽度
  v; S  {- J; `% f7 I" f+ K: evar marqueewidth=3006 W8 c9 v1 G. b/ z( w3 z0 X1 N
//高度
) Z  l3 T/ @7 xvar marqueeheight=25
: L4 e( S" P; ]3 h$ N9 I* h//速度(1-10)
( L: M1 }/ g! W9 V$ ^  u6 N. Z" d$ \var marqueespeed=3- Y- @. t" n: P2 h( U; }
//背景颜色
/ \9 ]5 K  l3 B. svar marqueebgcolor="#FFFFFF"
  h/ T: h4 j5 V% `; f//是否能暂停 (0=no. 1=yes)?2 k- M1 C1 a' q! U, u6 L
var pauseit=1
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//修改显示内容9 U  k  m4 B# F% D2 S& N9 }
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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. y3 y! A  c; S5 V6 V" Z////下面不需改变////////////
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var copyspeed=marqueespeed
7 `& x; _5 s8 U4 }: xvar pausespeed=(pauseit==0)? copyspeed: 0  v2 [! n  a" t. P8 H, K
var iedom=document.all||document.getElementById
% W8 [, b  K0 {/ cif (iedom)& G! I/ j' t! o) f
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
1 p4 |3 G% w0 wvar actualwidth='', \" K! m2 m2 J, Q& W
var cross_marquee, ns_marquee! b. [! E. `' L4 ?

: i. ~3 |8 O. J7 ^, Kfunction populate(){
% F8 k3 l5 y/ Y- v7 oif (iedom){$ x( u$ d# k0 z
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee  ]. L9 o% C6 f7 [0 M( W
cross_marquee.style.left=marqueewidth+8! U) \) C" W1 V) c; a* ^. d
cross_marquee.innerHTML=marqueecontent
, c% u( T% L+ d+ M7 ^8 j+ uactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth: T. R3 N; E* }2 j% @. [
}
7 x. o  N3 s" c2 D# R- X8 }& x. Jelse if (document.layers){
! X+ k+ X0 O1 Yns_marquee=document.ns_marquee.document.ns_marquee2$ Q' L7 c: t+ W, ~9 s  M
ns_marquee.left=marqueewidth+8
9 p3 ]' t! d7 E, W" I# i, mns_marquee.document.write(marqueecontent)
+ u' j* z5 v$ x5 V6 g- Ins_marquee.document.close()4 T$ P# a  O( e& z
actualwidth=ns_marquee.document.width
; C, E& u8 j3 U3 u}
/ L# x) g/ s) G1 Slefttime=setInterval("scrollmarquee()",20)5 j  m$ H8 R6 r" Z; I- O
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window.onload=populate
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function scrollmarquee(){, B9 C& z* @8 D% q& ?; i! t' ?" a
if (iedom){
8 `: b+ J. L4 V2 L6 e; y/ iif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
1 r8 O. e; L' ?. N$ D" G. B+ t0 {cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
% x/ ?' _/ x3 l1 m, |5 b  l/ aelse
; d! [3 s: T- X. s. [9 Dcross_marquee.style.left=marqueewidth+8- I. f9 y( t4 P+ G8 l. g" N  Q

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else if (document.layers){
, [+ o7 ^/ `4 T% V" zif (ns_marquee.left>(actualwidth*(-1)+8))9 C1 W5 L6 E' q1 k( o/ l
ns_marquee.left-=copyspeed
. D% z. ]6 M6 ~- u! _: n! t, \else$ o9 L% A  N4 `3 a- l
ns_marquee.left=marqueewidth+87 X. m% F3 Y, W: ?
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}
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if (iedom||document.layers){
$ i+ t8 _5 Y, c$ U4 Bwith (document){9 K4 W! _( q2 N0 L
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
+ m, J: [1 V! C+ Iif (iedom){
6 |$ @( m1 d4 F* u0 X+ `) h, Xwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')4 x) l* V# r4 O8 U2 S1 K! }' A& t
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')  o4 D3 n" {( k2 F" C' Q. q, n
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')' z& ]7 [% i" c/ X. D# C; I/ e
write('</div>')  p. k" \2 f- L7 Q5 K
}
# |- L0 H+ K  M$ E* F" B  ]else if (document.layers){2 q% ~2 O+ \9 j( f& Q1 g5 k
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')8 s! ^* E; e0 Q  t" T4 p8 Q$ U9 a
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
7 Z- |4 K! P0 \" w! z- L8 \& S* ?write('</ilayer>')
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document.write('</td></table>')
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: |- Y5 ]) N( L: Y/ S( U</script>