网页之跑马灯文字特效

zw2004

//修改宽度
0 b- ~  `- [. t5 _( P, Pvar marqueewidth=3009 I7 Z% w6 T( L: B
//高度
9 i/ [3 {! }0 @5 ~  M, O- A) |var marqueeheight=25- G, Z  h2 l1 a9 E1 a0 S% X
//速度(1-10)
  q, s, L8 u, L) Y# B% Kvar marqueespeed=3
9 t5 F' Z3 ]6 P, Z: g//背景颜色* D6 c- A' N% D) I9 i
var marqueebgcolor="#FFFFFF"
" q3 K; Y& i: P3 ]+ h0 q0 h$ ^- Z" l//是否能暂停 (0=no. 1=yes)?
) V' i, v7 F& @/ tvar pauseit=14 U- X  d/ u: H
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//修改显示内容
+ N* o; @! Q3 yvar 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>'4 T% i5 ]3 t) w9 x" u+ p6 `" }

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////下面不需改变////////////7 S& d6 f* w* ^: s% T0 F

4 I& L' f" ]/ m9 l$ A! J, e/ cvar copyspeed=marqueespeed- Y) H5 y* b! g: w
var pausespeed=(pauseit==0)? copyspeed: 0' M7 v2 I+ [: K# g& H( G  y
var iedom=document.all||document.getElementById
/ z, \( m% O/ g9 @if (iedom)4 R" B: C+ R! v7 ^
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')6 B. d+ y; K" Z, C# W8 N
var actualwidth=''9 X) T8 J1 @; `0 b8 B0 W9 I
var cross_marquee, ns_marquee% B# P( r# \3 z8 E/ {' J  g

# z6 `, J, _( pfunction populate(){( f2 ]. j- {( {# h. c* d9 K6 E
if (iedom){
& E$ @  g. b6 K( G4 w6 K% `0 Z  W/ Ucross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
7 R& k6 Z3 [, D6 y' lcross_marquee.style.left=marqueewidth+8
: i+ m' c5 V; across_marquee.innerHTML=marqueecontent6 B& m" p5 b  j+ ^+ {9 |
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){
+ Q/ Q7 R+ B% u* ~! O' zns_marquee=document.ns_marquee.document.ns_marquee2
: \2 v9 F/ D  @2 X! ]9 }ns_marquee.left=marqueewidth+8% z8 U1 D+ @* y* f7 n
ns_marquee.document.write(marqueecontent)" w: y+ a# r8 i8 v
ns_marquee.document.close()
' H; Z, q3 }/ s5 g2 P5 l# m0 Sactualwidth=ns_marquee.document.width: d3 W6 X0 d: j9 }) v2 E3 B
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lefttime=setInterval("scrollmarquee()",20)
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window.onload=populate
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& Y: D1 B* i0 {& j7 T8 g" d$ Nfunction scrollmarquee(){
7 X; ]4 V, ?9 Z$ Nif (iedom){
" T3 \5 y% i0 g/ @- A* @/ Aif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))0 S/ s- I1 p, _  i5 m2 a
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed, P  r1 H" a! ]% D2 r1 h
else( n1 b4 b0 ~3 Y. t* |
cross_marquee.style.left=marqueewidth+8; O' d$ X" S" Z% p1 u

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, Z6 ~7 C$ r: z5 |# zelse if (document.layers){
3 I8 h4 z: y5 E+ H0 `$ v; Fif (ns_marquee.left>(actualwidth*(-1)+8))
* D% y2 R9 ~) i$ B* Y$ _ns_marquee.left-=copyspeed$ f! J  H# }1 y7 w( l6 n
else9 P9 x' {" j# ^. j: q
ns_marquee.left=marqueewidth+8( ?& r. Q! L* z! H. p, g4 q
}
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if (iedom||document.layers){
, X" w, i. s4 M# o& r8 cwith (document){
- ~0 }. M1 L5 v4 l: Edocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')$ C+ o7 T" `% J2 J' U. g3 ^$ ^
if (iedom){
, z9 `- h, L, T& W: Kwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
2 f) M" f  C$ Y0 Swrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
: y: v1 p0 ^2 R, J$ [& c% Z0 awrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')8 Q. K% G4 J6 G( z1 v
write('</div>'); D. S: B7 E1 T9 w
}. u) C% O+ }. }5 q
else if (document.layers){
6 I' _  l& k8 fwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')  X$ A, W9 j: c0 V+ \
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')  d& Q  u$ L4 C
write('</ilayer>')
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0 e/ z3 \! U5 z% Cdocument.write('</td></table>')
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5 a' N4 K2 H# t( c1 h. c, i</script>