网页之跑马灯文字特效

zw2004

//修改宽度+ c- G( U$ s5 v* u; }' j
var marqueewidth=300$ `! ~- d$ O  g
//高度
9 Y6 V6 n+ W3 [5 c$ R$ U; m) h; {var marqueeheight=25- w% l9 O6 @# e2 {4 E
//速度(1-10)0 w1 m8 E0 D1 @2 i7 |# \
var marqueespeed=31 h+ l, a6 G; Y- q' o7 j# t8 n
//背景颜色
4 @" D! m& I4 A" X9 ?% O; Vvar marqueebgcolor="#FFFFFF"6 H" J. C$ f+ Y0 ~4 `
//是否能暂停 (0=no. 1=yes)?
0 H& `+ _/ \& i1 b  {6 E8 Evar pauseit=1
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0 }, |3 M1 M6 }" {/ q: N1 g& H//修改显示内容
1 h8 X0 O8 ~5 G- d  avar 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////////////* O  |6 R2 {6 w" |' A: T; N! v

0 ^( O: l# J! L( |+ s7 r! dvar copyspeed=marqueespeed
$ e, c: s9 D* q: J7 N, U; Kvar pausespeed=(pauseit==0)? copyspeed: 0
; g# i" r) ~% H  @7 {  fvar iedom=document.all||document.getElementById
/ O* U1 N( c) ?& j$ S  N. q# qif (iedom)( F/ z) V& S$ N( m3 y
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')" U$ `% j  [; ^" D! \9 ]
var actualwidth=''% [1 j6 [' w2 x1 x' B
var cross_marquee, ns_marquee: a6 }+ C1 H6 g0 t; b( F, |" Q  T& u4 B
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function populate(){
3 M* h/ P( l2 D3 [; }3 _if (iedom){5 `  C; _/ k! R' m4 `% }: I
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
' c; ^5 m' u. ~' scross_marquee.style.left=marqueewidth+82 O4 O1 O  Y7 g8 i6 m; H0 C/ V- F3 p
cross_marquee.innerHTML=marqueecontent2 o4 v0 v* w% O+ d
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
6 m! O. p* C& Q" W7 A) g}
5 e3 ^7 I) L4 E( uelse if (document.layers){
5 y* ~8 r  w& U7 uns_marquee=document.ns_marquee.document.ns_marquee29 `: Y. o+ V4 r/ D5 B
ns_marquee.left=marqueewidth+8
  }- U1 D8 t' C" C) ens_marquee.document.write(marqueecontent)1 Q; \. [( E! ]& \
ns_marquee.document.close()
; {9 n3 M. t7 ?4 p6 L* z2 i  Sactualwidth=ns_marquee.document.width
" u& c! s4 ~+ V5 \7 v% ^- I3 N}
( U5 b% l/ _- Glefttime=setInterval("scrollmarquee()",20)
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window.onload=populate
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function scrollmarquee(){
% n" ~- s* ~# Z9 ]3 K( v$ f% xif (iedom){  ^- F$ U) M, C4 d
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
* w9 V0 t* m. [. ]# V) }& bcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed  |( U, u& W/ f2 T1 Y
else( k1 v6 e- ^2 }2 s$ \4 d1 B
cross_marquee.style.left=marqueewidth+8
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}
% h% U' T4 Z, G' R0 i3 qelse if (document.layers){/ H! t  I9 {  D7 M
if (ns_marquee.left>(actualwidth*(-1)+8))
' S/ ]) T* |, z9 x+ q' O$ M; n  v1 I' Cns_marquee.left-=copyspeed! Q/ a4 J# F9 n7 h0 U
else; D+ o' v" X; F2 @3 B' z
ns_marquee.left=marqueewidth+8# f; q* E, _1 \
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if (iedom||document.layers){/ q% x/ s0 p+ U
with (document){, Y* L! T% |& ^+ K( p% U' ~' x
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')9 z/ j' o' }3 m& A9 M$ {
if (iedom){$ v# [. D9 J7 c+ L; T6 |+ R6 x
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')4 W+ o9 y2 F+ \9 C2 K
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')- K1 ^6 J; K" M: N2 H2 D
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
' Z) \. }2 W( e/ swrite('</div>')
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1 V" C3 ?5 H+ f/ a8 b( I- O5 velse if (document.layers){0 r4 I! }4 T4 f
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')) F5 W& O, {, g/ V
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')8 [  P: o2 C# r$ x+ Z
write('</ilayer>')
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5 B4 J( _4 t3 T* q' m6 Vdocument.write('</td></table>')1 `" S. @* N' P/ i
}
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8 ?- f4 q0 \9 j# L</script>