网页之跑马灯文字特效

zw2004

//修改宽度& u1 @" }) @6 R/ L
var marqueewidth=3004 i( P1 r6 g. n$ c
//高度: Y% ~+ K1 }+ `7 t9 \
var marqueeheight=255 d: A4 _% P1 F4 n* ~$ K6 N' A& Y
//速度(1-10)
2 c, E* C; s4 l: q2 P7 Yvar marqueespeed=3
) M- u: a# W7 ~3 k4 T$ h//背景颜色
1 i$ i: |4 M9 w0 o4 _) U2 c  dvar marqueebgcolor="#FFFFFF"5 l' r3 B, l- W$ K
//是否能暂停 (0=no. 1=yes)?* n% ~* X% x7 Q+ k" A  K! q- C; k
var pauseit=1! p+ e# `+ y9 |9 M5 ]* ]
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//修改显示内容
; S) h& \+ x8 j# x% z$ Rvar 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>'  g0 }% Y1 j  a* C' m* b& v' s! i

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////下面不需改变////////////
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& q! n% ]* Z+ ?7 i6 q: Wvar copyspeed=marqueespeed
; |  e: C+ C% W9 U4 D8 u; Y4 O# Pvar pausespeed=(pauseit==0)? copyspeed: 0
* H' _7 `; |9 J  A; Xvar iedom=document.all||document.getElementById
2 t: H) R" _/ I! a0 fif (iedom)  X! f9 x- T  Z5 r8 x. \# @- G4 `3 D6 U
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>'); G5 p3 L, e6 P9 v
var actualwidth=''5 k- W2 q, N8 x9 A
var cross_marquee, ns_marquee
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! o0 t4 K$ Z" i; I( d1 ^8 J. ]- nfunction populate(){7 V! e; z) i! [  X
if (iedom){
9 J8 T$ e- c- {* E0 Hcross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee( m* [+ p1 V6 l! h7 o
cross_marquee.style.left=marqueewidth+8
. b" c: B0 J  F5 ]cross_marquee.innerHTML=marqueecontent  m! w% `, {& @; S+ F. k' J
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){/ E8 U1 _/ W% ^; Z
ns_marquee=document.ns_marquee.document.ns_marquee2% u& X" ?$ o8 O5 C7 u' X7 Z
ns_marquee.left=marqueewidth+86 _1 a/ h# n: P. r# J
ns_marquee.document.write(marqueecontent)
' h* }; x/ N# Zns_marquee.document.close()* b) R/ Z8 K$ ~# e* I6 a5 r8 |
actualwidth=ns_marquee.document.width
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lefttime=setInterval("scrollmarquee()",20)
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window.onload=populate
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* i8 Z1 O! Q/ z4 ^: B$ n# gfunction scrollmarquee(){
! C5 b6 e- E: ]/ {! Yif (iedom){% y  L9 R2 _' L, l  e
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
: x9 }! n- e! @* j! kcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed- Y( k" w: h2 y4 |3 ^+ J
else
$ C( c" l$ e( s- v1 U  }cross_marquee.style.left=marqueewidth+80 A( y+ ~- P* O- h

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6 w9 c! ^9 V3 q. [) j; Yelse if (document.layers){; E: c) f, D+ |. t) r: D
if (ns_marquee.left>(actualwidth*(-1)+8))
* s0 v8 D& w% _$ W1 ]ns_marquee.left-=copyspeed- ]: i" ~+ @! j9 E, n+ i+ A0 k; ]
else% ^) s' I3 R! W1 V  l9 \
ns_marquee.left=marqueewidth+8
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if (iedom||document.layers){. W! {1 X; Z8 i) l
with (document){- I$ ]/ |' ~) u
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')9 {( J- T: u8 P5 Y4 c6 d
if (iedom){3 E7 E& {% Y, i' N) ^
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')  w- D# j: B6 e  Q# ~1 _1 R
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')3 |) U; b* G5 X  ?" ?( r" y
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
# @3 ]$ j% X7 I2 i0 iwrite('</div>'), _' t1 a* Z  l+ |  V( [, I
}
) v' @7 }( c' Gelse if (document.layers){8 U& Q& F3 U% _( l: x9 ]# B) U
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
$ S) L/ y4 i% K. fwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')4 \3 |* o2 n. w
write('</ilayer>')
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document.write('</td></table>')
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</script>