网页之跑马灯文字特效

zw2004

//修改宽度" k" N2 H9 x2 T- g6 u; G
var marqueewidth=300& {5 J, P7 `; `' u0 \( Y
//高度1 K6 }& h2 |& ~5 b$ X5 S# K7 j/ N
var marqueeheight=25. r0 `% }; p& m; x2 L
//速度(1-10)
+ D5 |8 E4 O6 g" G$ Nvar marqueespeed=3# F" J* k3 `5 j& f
//背景颜色+ _; n: o' _; I( ?! C. w
var marqueebgcolor="#FFFFFF"
" o1 v6 Q  V+ D$ q; N//是否能暂停 (0=no. 1=yes)?8 }- p. B; u' M6 i
var pauseit=1
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//修改显示内容
) c( x2 y- V6 Dvar 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 W0 O0 b, A( e. I5 E. d2 c3 d6 x/ Y

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////下面不需改变////////////
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var copyspeed=marqueespeed# z& `; V3 G' `3 [4 q  j. Y+ q8 R
var pausespeed=(pauseit==0)? copyspeed: 0
7 ~+ i5 n3 M' W" {: L, x2 Fvar iedom=document.all||document.getElementById
7 G/ p% _: T5 E& L# W6 Zif (iedom)* p) E0 x) N& Z- H, X
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
: u& Z8 J% A0 ]# ?6 L8 E( [var actualwidth=''0 `" A: \+ s+ G8 [
var cross_marquee, ns_marquee. |9 u- N, a5 N

" m  G! z6 h2 ?0 c3 `$ vfunction populate(){# ~7 ^  p& ]& l1 x' |" s
if (iedom){$ B* a! I$ D3 F7 P7 W5 r
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
3 V0 w) o- }: L9 n0 lcross_marquee.style.left=marqueewidth+8
5 [0 s7 e2 d( Q" l8 G  T8 c# ccross_marquee.innerHTML=marqueecontent/ b- K* Z1 [) P! R$ O
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){
% o3 S$ F. }" ens_marquee=document.ns_marquee.document.ns_marquee2  K2 W9 s2 R+ ]+ M
ns_marquee.left=marqueewidth+8, G. \0 U& R; O9 A& _  d
ns_marquee.document.write(marqueecontent)
- j( _* t$ N: J& w) ]" u$ i$ Bns_marquee.document.close(): T; a. G2 T' R9 ~: [+ H9 X
actualwidth=ns_marquee.document.width
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lefttime=setInterval("scrollmarquee()",20)
: g1 ^# v, J, K/ w}
' L3 u! _0 p. ~5 z* G+ n" }& Hwindow.onload=populate
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- v: |/ e" R( [" {( C3 U1 j6 z" Lfunction scrollmarquee(){
3 }8 f( _. ?2 q, v* E% \: `$ [if (iedom){
0 c) G3 n8 a* I7 `: mif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
9 R4 O: F$ \8 R0 s, c' Ncross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
4 k3 s6 F* n8 b6 M& Belse
! |& g/ I8 t4 |4 {6 _) M1 {+ across_marquee.style.left=marqueewidth+8' ^  }- x7 j7 ]* [5 w

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else if (document.layers){
  u3 t7 W, c7 k, G. E  ^if (ns_marquee.left>(actualwidth*(-1)+8))
" j' O+ h# c9 R3 B: ]4 uns_marquee.left-=copyspeed  q; |  v  J3 l7 \5 n
else/ I, J) D- f4 t! `0 b% @0 t1 _1 o
ns_marquee.left=marqueewidth+8
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if (iedom||document.layers){
+ T: ], V0 N5 ~+ t( {9 F7 {with (document){8 r8 f" X7 l9 h% p6 ~, h$ X
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
$ _& W* ]3 D2 m  ~. f/ uif (iedom){
- `4 Q# @! ^" A( U$ @- twrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
) l( T* p" l7 x$ q& i1 K- Hwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
& u4 r& ?$ U6 Vwrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')& \; b4 _' n. s( T3 U
write('</div>')2 V. N' U& ?9 C% K0 T- r
}
( k9 ^2 R& `9 t5 ~$ Gelse if (document.layers){
* Y  a% r6 F* ]3 O4 }/ r3 swrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')0 X5 ^4 d5 A, }  q( s6 N. X
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
2 l  c  x0 C( T4 hwrite('</ilayer>'): R  v8 J3 w* h) E$ @& ^5 h* x
}
! F, m0 R0 O* d2 [0 ^document.write('</td></table>')
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# K: U- A! a) Z</script>