网页之跑马灯文字特效

zw2004

//修改宽度/ h" _2 Y: |4 O+ r! _& x/ n
var marqueewidth=300
# R/ [4 P+ N! o. B//高度% D+ z/ R/ F( I' L
var marqueeheight=25
; \/ j8 v( v1 s& k* z. t) J//速度(1-10)) L5 h$ F2 M* k) d3 ?  a/ C9 a
var marqueespeed=3
! }8 I& \# }" m9 @- _//背景颜色$ `, q% ]& C; J$ g* }7 E, o. {
var marqueebgcolor="#FFFFFF"1 T# V' h6 ~2 |! U% P  Q: k
//是否能暂停 (0=no. 1=yes)?' T9 {& L4 z; j+ z2 J2 M+ s& e2 l# o
var pauseit=1
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; l8 J* d: c: p) w//修改显示内容7 V2 q) g" J9 h, W- Y
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>'
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4 r" d3 Y% j& W/ i! e////下面不需改变////////////5 O& l6 j4 S- U" F
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var copyspeed=marqueespeed
! Q3 F5 @' U1 E: U& }var pausespeed=(pauseit==0)? copyspeed: 0
& y9 ^+ }* t9 i$ n& R. @" B5 Xvar iedom=document.all||document.getElementById/ {/ N; X5 N( U' ~+ P
if (iedom)0 }3 v) Q" C0 P% C. d
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')" \4 p" n* c/ l! E1 r
var actualwidth=''
0 v% [1 G2 l6 X$ a3 b" L- Xvar cross_marquee, ns_marquee/ O; E' i! q9 ]3 i
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function populate(){
3 N* w% v8 T8 \if (iedom){: Y* r5 |% E. l6 O" j' o
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee- t6 b/ L! A7 `$ e
cross_marquee.style.left=marqueewidth+8
6 @7 I: B3 f8 ?) E) _+ Ecross_marquee.innerHTML=marqueecontent+ T5 B9 D, ?. m. L
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth; z& {/ G5 X- p4 W' p  l
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else if (document.layers){
4 Z1 c: \: x" E1 ~ns_marquee=document.ns_marquee.document.ns_marquee23 t- D; `0 u2 I5 [/ S1 V
ns_marquee.left=marqueewidth+8
6 B$ }0 h" B. v8 Q4 R& Dns_marquee.document.write(marqueecontent)  {" w" O, g$ Y1 U4 X5 F
ns_marquee.document.close()
- |8 P# j, [% I6 @& ^% Tactualwidth=ns_marquee.document.width
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lefttime=setInterval("scrollmarquee()",20)
7 y, x7 S! E0 o5 u}
( r4 h9 n4 U2 e* awindow.onload=populate  S& a0 V# a5 z5 y

$ Z  }0 b3 j6 u1 w" Wfunction scrollmarquee(){
, R1 p5 o2 d0 X' ?if (iedom){, `4 K/ v6 b, u, Y
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))" D5 k, E# O. h3 c5 X4 [3 B
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
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cross_marquee.style.left=marqueewidth+8. v, B" U1 E/ }9 B
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else if (document.layers){" J( j5 C: d* b1 R
if (ns_marquee.left>(actualwidth*(-1)+8))
7 Z( @+ M+ n" k/ U7 w) D/ F' f, Vns_marquee.left-=copyspeed
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ns_marquee.left=marqueewidth+8
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, w/ f6 C7 g& r' V7 Y$ m1 [  bif (iedom||document.layers){
7 k: L3 A- l: m' z% M5 N& Qwith (document){" S* D2 e+ P3 J  P- M1 A/ d; u
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')% z- o/ Y! x3 n9 I7 |1 X& \9 f
if (iedom){
9 U# V  a' {7 [6 W2 nwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
3 C+ D; s- g9 m( A3 [; Vwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')  p1 O* u$ M. m0 F' J6 `' k
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
: Q4 [# [/ m9 f' m' Gwrite('</div>')" W0 w. n7 _2 N* I7 O
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else if (document.layers){
0 x4 w$ W4 j7 b0 U' z; j1 iwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')! T! B8 i. r2 |, y- K4 U6 u
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
$ I0 _4 ]4 L1 S. f; O+ awrite('</ilayer>')
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document.write('</td></table>')
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. j+ z: H1 k+ V7 ]</script>