网页之跑马灯文字特效

zw2004

//修改宽度0 _9 i, ?% \5 z9 E% Q+ k  e
var marqueewidth=300
5 o7 k5 R3 d9 q. v! R! E//高度  N7 e% n1 k& i5 o: n6 m
var marqueeheight=25$ m  _( H) f, X9 h$ d
//速度(1-10)
' @2 e6 E4 T& t3 P$ `1 evar marqueespeed=30 O% T1 @* J7 d9 N2 K3 J' O
//背景颜色
8 h1 x& k* B$ f' l+ Tvar marqueebgcolor="#FFFFFF"& A/ p3 K  Q9 x1 ~& ^0 t4 J% Y
//是否能暂停 (0=no. 1=yes)?
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//修改显示内容" t3 _5 S" A/ f7 [3 P# b9 H
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>'7 k. U; n9 }6 M- l% \3 G

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////下面不需改变////////////
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var pausespeed=(pauseit==0)? copyspeed: 0% P/ k+ P) H$ U& w" z
var iedom=document.all||document.getElementById
. X( j, z3 ]; ~9 D: B+ f3 H6 Pif (iedom)
3 [4 d+ N7 ]7 F9 \5 T3 h3 u  C% ]document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
' e& t2 k1 j5 w7 nvar actualwidth=''
5 h( p- z2 T/ y0 g) s. H- vvar cross_marquee, ns_marquee
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6 j0 S% x# e6 U+ ofunction populate(){
& \. A  n0 q/ ~if (iedom){2 k( q0 G# l# f- ^
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee2 y/ u9 F! }, x$ O# o. z
cross_marquee.style.left=marqueewidth+8! L: b* T! {7 t( ]0 k" d
cross_marquee.innerHTML=marqueecontent( q2 r7 M" C. N4 y! @/ l
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth4 H: [5 K/ P# i; \2 A7 ^
}
) d1 `9 j6 ?1 c# [8 `0 E1 d6 f/ Zelse if (document.layers){
6 Y& [- w; j" [$ _, o: [ns_marquee=document.ns_marquee.document.ns_marquee2' m( d' J; Y' Q  [) l# u8 @) N4 _
ns_marquee.left=marqueewidth+8
+ H' o9 C7 u1 U2 l, K' ?- S* C6 [ns_marquee.document.write(marqueecontent). i2 f7 a1 `" g+ E
ns_marquee.document.close()
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lefttime=setInterval("scrollmarquee()",20)
/ K5 H; H5 b) u$ U' w}
% g0 S1 \& z# e/ ^7 s) Lwindow.onload=populate) X3 P  a' \+ }  }$ b
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function scrollmarquee(){
8 M: O5 ^  z) z, V' [( C9 Eif (iedom){
  I2 X+ l0 l0 Oif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
; |( N$ A. r7 T' Jcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
8 {) G( r# Y+ h8 O" Lelse% J0 v. ]/ P4 Z) E- }5 P/ ?% w
cross_marquee.style.left=marqueewidth+8
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3 ?0 E( C  v8 V" S0 yelse if (document.layers){
. A1 ~  u  N; H" {" r' `1 cif (ns_marquee.left>(actualwidth*(-1)+8))
" j, @: s$ M1 T3 H+ e  }; Q9 lns_marquee.left-=copyspeed
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ns_marquee.left=marqueewidth+84 a" v* R+ M& l( q- s
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if (iedom||document.layers){
/ q5 u. W( b3 h1 k( J7 P+ I- hwith (document){
! B/ Z  }: r" E: Y1 |  B7 x) edocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>'); q: c2 y0 f. @* f4 X
if (iedom){  E8 A8 V- p$ c1 Z: X: r
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% u1 D* u5 ^! }, B; C' o; owrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
. A2 B  H8 Y3 w" ~write('</div>')
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3 H/ o  w$ ]2 x0 welse if (document.layers){
- p, g7 M' _" nwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')! i* l4 g. {9 \' {  F8 a; s
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
: c7 @$ ]! `% ~' L  }4 Kwrite('</ilayer>')
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document.write('</td></table>')- p5 y# m: y9 }8 ?: j
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