网页之跑马灯文字特效

zw2004

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var marqueewidth=300- l2 w7 Y3 R! v6 f8 N
//高度# `" e2 @+ V9 \0 i% e9 z
var marqueeheight=25
& P4 X$ f7 X, B( a1 c( H$ f7 l//速度(1-10)
+ Q4 I7 Z* B! K0 m" F7 `3 M1 Svar marqueespeed=3
- }/ N3 a; q% R# O//背景颜色6 O% t! F& `9 Z; w2 i. d
var marqueebgcolor="#FFFFFF"
/ o2 K4 F$ b+ I( V! W//是否能暂停 (0=no. 1=yes)?
, i8 z6 c6 \7 @1 Evar pauseit=1& S6 v( |/ S1 `( J) Z+ S. R
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//修改显示内容
% `1 C0 k3 l& D+ L2 [- K) 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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  ~) v: T; l, [% z; Z0 ~////下面不需改变////////////) A- r) K/ K  r6 t
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var copyspeed=marqueespeed
* g- v0 h1 p8 n3 a  xvar pausespeed=(pauseit==0)? copyspeed: 07 z* e# n# \7 t2 v, |3 }) o
var iedom=document.all||document.getElementById' {: N9 E: f/ a/ U8 ~; S
if (iedom)
* o+ S5 o  l! F) z+ N6 X# T/ z4 d5 W) Gdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
* a1 }) v5 t: z  O( X# Uvar actualwidth=''
9 {8 v4 d# U) tvar cross_marquee, ns_marquee
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! H; ~; A8 O/ i- C9 dfunction populate(){, x. U2 U: u6 u, x  T9 R6 D
if (iedom){+ p- l2 [% e0 D* y
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
$ h4 X0 M5 E  i; A+ ~cross_marquee.style.left=marqueewidth+8* C8 L: f4 N3 H5 e" u
cross_marquee.innerHTML=marqueecontent
' I$ u; X% p. o) X, Q  [actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth2 S2 J" z# J1 w* W8 w1 l
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else if (document.layers){0 n0 O- g1 N4 E0 d
ns_marquee=document.ns_marquee.document.ns_marquee2" h* W6 ~: K; s+ R. Q
ns_marquee.left=marqueewidth+8
+ `3 h: U. d3 J# D6 Kns_marquee.document.write(marqueecontent)$ c& X# x9 a& I/ |: k
ns_marquee.document.close()
2 r' C. q' b8 r# \; v! T. iactualwidth=ns_marquee.document.width! }( F2 T5 h2 ]% M- t
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lefttime=setInterval("scrollmarquee()",20)
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" O1 z, d4 U2 J! e) iwindow.onload=populate7 y1 E, ^; V) e0 Q: V) l
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function scrollmarquee(){
" D, }( [% y4 L+ G0 ^$ W  Eif (iedom){
/ O- c8 o2 ~9 Rif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))/ ?0 e, R! s0 M. ]1 r; q# P
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
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cross_marquee.style.left=marqueewidth+8
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else if (document.layers){
" K+ {+ y! d- w5 \& M) G+ E6 Sif (ns_marquee.left>(actualwidth*(-1)+8))
! G. V3 B, L# V" f* @0 r, Hns_marquee.left-=copyspeed
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3 H6 ]! d# r. |& mns_marquee.left=marqueewidth+8
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if (iedom||document.layers){
, L3 ]! b% a, k; k0 dwith (document){
" z! W3 K% H; @+ x4 D% c' Tdocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
1 C' R/ e) f4 A" zif (iedom){
* q) J4 v: Q6 ?0 wwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
! K5 j# I0 c0 N8 }7 d! ~$ owrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
: d5 ~5 g- ^2 H4 }5 A  ^. v1 Qwrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>'): v" Z2 |$ q: g3 C/ ?
write('</div>')
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else if (document.layers){+ c. ~3 G- ]  q9 Y$ C1 D5 ^
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')0 b1 l; t: w+ {. G8 h+ J
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')# k) s. \1 \8 [+ L! W
write('</ilayer>')
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; d+ _9 A* l+ Q8 |! rdocument.write('</td></table>')/ f: T: P. t3 Q0 l3 w
}
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( ~/ H2 W: l" D& j* l</script>