网页之跑马灯文字特效

zw2004

//修改宽度8 p- {4 g: H+ C: _, c( l  o& H
var marqueewidth=300
' X" \- ^/ d9 {4 Q1 x4 B//高度
" e  b, A3 c8 Y: J! _  L, T9 Ovar marqueeheight=25
1 }$ a) c8 `7 H: u. ]//速度(1-10)
, u2 U0 ]3 _+ F& uvar marqueespeed=3
! M& T2 P( T: H9 f& G4 T//背景颜色
; ]! L5 M2 k: m! o/ }% Evar marqueebgcolor="#FFFFFF"
) ]8 T9 q, N! h/ O! @//是否能暂停 (0=no. 1=yes)?
% }( p  ~) \8 Y: |/ evar pauseit=1
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: [& O/ l# y4 Y7 C/ m//修改显示内容+ i( @! f4 b* a% ?
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////////////
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6 i! G! _: l% P8 k* T/ y, t" ?/ ivar copyspeed=marqueespeed
2 N, Q$ H/ L& ?6 O, @. c' t0 lvar pausespeed=(pauseit==0)? copyspeed: 04 J. w8 r7 I# @3 C$ r2 d! q
var iedom=document.all||document.getElementById
0 n, r9 h0 x- v! hif (iedom)
/ _; ?7 s2 q# C  g* kdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')1 r8 z& b" u# W+ ^
var actualwidth='', e( Q% z* ?6 a6 s7 J- h& G
var cross_marquee, ns_marquee
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5 }: O! N( {1 c, ffunction populate(){
% b9 D1 v, L% @$ tif (iedom){& N% h5 m* F7 H, ?. R; k+ g
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee1 P2 J2 D# E* O! G+ K! W& b
cross_marquee.style.left=marqueewidth+8
% |4 M; `, m9 pcross_marquee.innerHTML=marqueecontent
7 e' Y# J5 ~; c) Pactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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* j& h: X& i  L0 w& V, z/ d1 ?' Helse if (document.layers){8 y; m* [5 Z. ^+ \1 S7 I
ns_marquee=document.ns_marquee.document.ns_marquee2+ S* D2 m+ u: [( b) Q- ]0 t# D, P
ns_marquee.left=marqueewidth+8; i1 a0 K4 u4 d# V1 |0 i" R, K6 Z" D
ns_marquee.document.write(marqueecontent)
% y% x5 `  }. _0 t( I$ pns_marquee.document.close()
" z$ d" R1 N: X. {1 v# {actualwidth=ns_marquee.document.width3 R7 H1 d  @2 J: C& }
}
& n' r3 _+ Z: r5 g' t! Z$ {$ Z2 dlefttime=setInterval("scrollmarquee()",20)7 U3 U" J$ k- R
}  d$ R6 P3 D1 C! G8 [
window.onload=populate+ L/ w- h  n8 K1 j' Z/ n% d

. q% i% Y; }$ }  J& G2 m7 ufunction scrollmarquee(){
3 O# z( t8 G3 x  Bif (iedom){! u% D9 s9 o3 x0 s! \
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
* }" _& b# s* J2 X0 {$ `cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed! L8 u5 H1 a; @! K
else
+ @4 j( E5 `- r  M8 a. ~  C3 icross_marquee.style.left=marqueewidth+8
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}8 X1 H; U8 Y$ Q
else if (document.layers){; J3 e- @/ A! A5 G4 T
if (ns_marquee.left>(actualwidth*(-1)+8))0 K& e% C' @; \& x
ns_marquee.left-=copyspeed
$ ]+ q1 V  Q3 K. o8 Jelse
- R6 Q+ D+ B6 S. Cns_marquee.left=marqueewidth+8
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}
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if (iedom||document.layers){
0 R/ L: ~% R) l/ M1 L1 l$ Uwith (document){* j0 i' O8 t' _/ C4 u6 ]
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
5 d. C- r/ Q) Uif (iedom){) ]- _4 _" l, B# q/ ^
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
3 u4 r( o( x, u4 M: C9 [8 x' k. zwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
6 w. V( @  d& G# G$ [, j  z# `write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')+ t) ~  G: h1 ~: \* C  |
write('</div>')% Q1 ~: u- H. s9 F( C
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else if (document.layers){! w. j8 l4 O- z4 q0 u
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
  v$ W7 F6 V* m0 c/ c5 [write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
0 F% j, H, @, t$ D8 rwrite('</ilayer>')
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document.write('</td></table>'). ]" B6 a( I* \* I
}
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</script>