网页之跑马灯文字特效

zw2004

//修改宽度& ^; @/ K4 z9 f+ K& P
var marqueewidth=300& ~, X* \( q5 z+ K
//高度, p! ^! F( _6 s* l
var marqueeheight=25
$ h3 I: b$ q) J; c( p" z3 A/ m//速度(1-10)
: W1 y5 _* _; N# ^- v1 yvar marqueespeed=3
6 y" l4 B  u, N! Q' ?. {% j# a//背景颜色  V* Z6 G6 \9 G) f" g
var marqueebgcolor="#FFFFFF". ?" h- W% a/ A0 w4 R
//是否能暂停 (0=no. 1=yes)?" D( T* r9 R( i/ W  y9 m& f
var pauseit=1
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" B3 x8 @0 i: `8 @# W& q: p" u//修改显示内容' `, I) w* Q/ [- i
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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////下面不需改变////////////
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" D( q! Y; Q4 I: M7 |- _/ K& Q" Y& Wvar copyspeed=marqueespeed! d4 W1 X2 J! L8 A0 ]
var pausespeed=(pauseit==0)? copyspeed: 03 \/ E7 t' {2 g: ?
var iedom=document.all||document.getElementById' A2 }9 ?6 I# D  N3 h3 ^
if (iedom)' S9 l6 {( @2 I; P
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
3 X0 p8 Q9 r, E3 T. [8 }var actualwidth=''
4 {! d4 m) Y, j" o1 y& jvar cross_marquee, ns_marquee
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function populate(){
8 q( X( w2 C1 \1 Mif (iedom){- }7 d8 L: Z2 F& _; ~: l! r, z
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee: m3 j2 o6 o* [' |
cross_marquee.style.left=marqueewidth+8
: l$ P, T0 v' K/ c2 R4 _5 F6 m# C$ Bcross_marquee.innerHTML=marqueecontent
2 J% _  |* Z7 v' s9 Eactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth, b# H; [% j0 ]2 M
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else if (document.layers){% R1 I. w6 H8 Q+ p0 \6 O, g
ns_marquee=document.ns_marquee.document.ns_marquee2
6 l9 T9 B; V9 `! S* x' Xns_marquee.left=marqueewidth+8
, C( Y+ J, z" Cns_marquee.document.write(marqueecontent): ]2 Z7 w1 b* V& @! s! R/ ^3 P& e& s
ns_marquee.document.close()2 u; z) ^. I. |
actualwidth=ns_marquee.document.width
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lefttime=setInterval("scrollmarquee()",20)
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5 @$ w5 n+ E, W) l% P" N0 e7 D6 Kwindow.onload=populate
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function scrollmarquee(){
) s# ]: [: a* M) L/ [7 e4 nif (iedom){
5 @  r3 m/ V- Y' E; N0 G* oif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
  H% q2 i0 G: }$ w/ }cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
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cross_marquee.style.left=marqueewidth+83 i2 c2 _. T$ l8 ?5 `4 z0 ?7 w
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else if (document.layers){0 Y; E  W8 j, Y
if (ns_marquee.left>(actualwidth*(-1)+8))
3 ?" J8 G# {) wns_marquee.left-=copyspeed- I- e& u4 Q5 q; ?
else
7 }0 n- H: }* ~3 P4 q3 v( J! q% e, ins_marquee.left=marqueewidth+8. a+ y3 ?, s0 r1 H* f
}; ]+ S9 j; Z3 ]: V8 i
}; a* J4 p; b) ~$ {$ u# N; S) T2 G
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if (iedom||document.layers){3 i) g) m) l  H) G8 |
with (document){
- C9 ^$ F, w2 V) Q  B7 Q( d0 V" K. W( Idocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
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write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">'); I# r$ K) ?$ I& Z' n7 v8 b8 _, h
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
6 ?" @# v% C4 B, _write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
1 e, [" k) E: _: dwrite('</div>')
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else if (document.layers){
( u- _+ q; Y( o) Ywrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')! _2 D; M5 ?3 x' }
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')% D. S: _2 ^. H' L& K
write('</ilayer>')9 _* [- G; c' m# j% |
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document.write('</td></table>')0 K( {4 _9 u2 j1 P
}
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, d: f5 p- _. V! K8 g</script>