网页之跑马灯文字特效

zw2004

//修改宽度( C* y6 }+ x0 R( @, B
var marqueewidth=300
$ s" Q: o7 S  n4 X" `1 I4 P) u& x//高度: G0 n2 _8 p/ D, D
var marqueeheight=25. M  T# L8 {' Q) F9 _1 Q) p  `
//速度(1-10)
: K; R* J- U6 a5 E2 P# Qvar marqueespeed=3# G" C  m+ _6 F" }0 ?
//背景颜色, w" q/ i9 [' G9 [1 V" g
var marqueebgcolor="#FFFFFF"
8 Y( I" q+ E: Z% b2 z//是否能暂停 (0=no. 1=yes)?
$ k4 ?- [+ i( L% M5 U& vvar pauseit=1
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//修改显示内容) n# s1 k' W% i& I' F; o: x: h
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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' F# S1 Z7 z0 C' n- M////下面不需改变///////////// Z/ ^2 I" r( m- o4 p* X
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var copyspeed=marqueespeed1 h, o, o% D" f9 Q; P3 s# D
var pausespeed=(pauseit==0)? copyspeed: 0
2 |: ~6 ~( v6 Q# u7 Lvar iedom=document.all||document.getElementById, O0 n0 x8 d; _9 k- `
if (iedom)
& B; u& {/ W8 e7 n( I5 ndocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>'), m6 A2 v0 _$ l6 ?; f
var actualwidth=''
. {$ P8 S/ f. ]  H1 K5 w$ Mvar cross_marquee, ns_marquee4 O' X0 a; y" W; L0 I
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function populate(){$ j* J: x1 l; H9 F; g' f
if (iedom){3 _2 ], T3 e5 \( p1 |; ^  b
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee( p$ m. M; k- l0 ]# ^# S$ z7 D8 D
cross_marquee.style.left=marqueewidth+8& I; s5 `! p' x, b
cross_marquee.innerHTML=marqueecontent/ z) ?9 [7 L1 m3 X: {- |
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth& [: L+ A7 \, r& {4 v* j
}
$ g7 a8 Y. ?+ C$ c) D5 S% Qelse if (document.layers){
+ B. |  S3 l& i% W6 a$ rns_marquee=document.ns_marquee.document.ns_marquee2
" f' t( ]4 x# r7 ^: |ns_marquee.left=marqueewidth+8; e3 A6 X7 K% j  e3 A' x
ns_marquee.document.write(marqueecontent)
' L, O2 j8 Q" t2 f; y& [ns_marquee.document.close()) f3 x# j- c3 @3 `$ ~- S- a
actualwidth=ns_marquee.document.width$ U: l& v; n* p: d+ n9 G
}
6 ?" r6 N2 G6 E9 w- plefttime=setInterval("scrollmarquee()",20)+ j6 _2 W7 R  P( Y: v
}
) H: m) H9 I! \8 I5 s* k6 _: cwindow.onload=populate. o$ P# J. ]9 v  U3 d) w+ a0 F2 D" e

& e  X3 h- T; _function scrollmarquee(){* m7 x1 k6 l9 L2 @: F4 L
if (iedom){
  e1 X2 X2 j3 \8 [if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))& ]1 u% d+ {8 e6 |% w2 l
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){, S# J" A: C- i, W& X" [0 s4 G
if (ns_marquee.left>(actualwidth*(-1)+8))# }6 D" t0 ]- S
ns_marquee.left-=copyspeed
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) n6 Q% R/ s# [$ Y# o7 |; Jns_marquee.left=marqueewidth+8
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}
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if (iedom||document.layers){
2 g2 N- O( u% X4 f' H% Q, \  |6 o3 D) Hwith (document){5 }4 J( p7 n: A& j1 V
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
. v$ \0 _! b9 ?5 u, V7 Pif (iedom){
' O; F: k4 T' Fwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
* |9 h/ L* e7 a& o6 xwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')) }& {+ q- m- O' [
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')  ~( ?5 D$ t+ L  ~6 H9 n& f
write('</div>')% u$ c1 m% {3 A0 o  c; s- m
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else if (document.layers){' Y" L9 U. ~' b- k% \% e- s
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
1 C  S& l3 J) i/ j2 x8 M3 W: S  |9 xwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')7 `6 {9 n- g! r4 U* Q
write('</ilayer>')$ m$ V$ q. Q8 H4 J% V" K" R! J
}
3 U/ R9 g3 {- n( Bdocument.write('</td></table>')
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( _9 B% P% f! q+ R! ~</script>