网页之跑马灯文字特效

zw2004

//修改宽度
; C; _6 |( o# r, P. R  svar marqueewidth=300
* F0 y3 \8 U5 I/ {$ I, s//高度
2 }9 z) D6 \5 D$ V, m3 u( I! `var marqueeheight=25
$ S4 Q# z& a& W0 s" v//速度(1-10)  [% n7 Z/ V8 {) v- ^. f& }, z$ i
var marqueespeed=3
% V, l8 Y* i  s' Q. x8 F; y//背景颜色
. W% p4 T; f3 ?( T" _+ zvar marqueebgcolor="#FFFFFF"6 l; Z2 X% j' j& x- ^0 O9 \
//是否能暂停 (0=no. 1=yes)?
' l% r$ o" u% K! c  d! k& Vvar pauseit=17 C& E- _' u2 q! \, _5 `

- K3 L' e" q0 U, Q6 `) E1 B# A//修改显示内容  ]1 w2 R5 R1 M' ]4 Z! k
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////////////% O' G4 ^2 ~% G/ q3 ]: r9 z2 \
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var copyspeed=marqueespeed8 c2 c% N1 D/ j. e
var pausespeed=(pauseit==0)? copyspeed: 0
2 {: C! e9 T9 g# a( Wvar iedom=document.all||document.getElementById
; P( f% Q+ A0 ^# ?! S6 W+ I2 Lif (iedom)0 n- s3 b: k" h5 S1 R7 G
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
' \, @% _& p4 q- c. \6 Ovar actualwidth=''
" ?  W- J9 P3 [" Qvar cross_marquee, ns_marquee
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4 e2 q8 r/ g& B' _function populate(){
5 \3 Z% A5 L; A  M% Q* r, `if (iedom){" K1 F) A, J! v1 H1 a2 |
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
. [- W+ a% g. B0 r. r% gcross_marquee.style.left=marqueewidth+8
/ s4 H- n# G/ z" j: Qcross_marquee.innerHTML=marqueecontent
; K; N& h: b) vactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
, }! _! S* P7 \- A, u8 S5 _0 e& f6 x6 S}
9 E" ~0 S* X* o: V, H& m7 nelse if (document.layers){
3 f: S7 a  G9 i6 ?8 }ns_marquee=document.ns_marquee.document.ns_marquee2. K, j0 l. v6 {( |- D9 }4 u
ns_marquee.left=marqueewidth+8
  j- S3 }9 Y: s4 L( I& }ns_marquee.document.write(marqueecontent)+ z" l% c4 c. n6 T0 m
ns_marquee.document.close()
0 |0 G8 O( I% jactualwidth=ns_marquee.document.width- k) Y% f) f  G" ]& t% I
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lefttime=setInterval("scrollmarquee()",20)3 F" L  Y2 S3 X3 L$ v
}0 p$ a; X7 k$ F0 D2 B8 F/ x
window.onload=populate
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function scrollmarquee(){
2 O. @- p: s1 G% Jif (iedom){
2 B$ r" g: K3 E& S* w! P% Iif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))( \2 y1 j5 L2 d& L9 |! M& |
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed6 Q! H* b- z3 E! Y' g' z
else
% T! Q* d; u; v# ocross_marquee.style.left=marqueewidth+80 n* @$ ]2 h+ e; C- z

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else if (document.layers){- M9 |/ n2 q; u0 u2 t, ?
if (ns_marquee.left>(actualwidth*(-1)+8))6 \: w% X( }; [, @/ J5 H
ns_marquee.left-=copyspeed3 L; V& U- j. f8 {2 n
else
, {2 X9 ^1 k9 q: }' q0 bns_marquee.left=marqueewidth+8
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" Z# q) a* c7 E9 t/ k9 Nif (iedom||document.layers){. h8 \5 f. W9 S2 D% ^: P
with (document){
! ^# C% Q: d' j6 I+ c+ Udocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
7 l2 @6 G  C2 xif (iedom){6 U9 }' E- Q6 p
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
1 K1 s3 U1 `# i: ~4 c1 t9 M9 |write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')* M3 d9 L7 h) K8 i9 a" g* i1 I
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')' P. d! Y; ?& e8 x
write('</div>')
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else if (document.layers){7 f8 a3 d3 e% f1 J4 B( y8 z- _5 ?
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
+ t1 k, g- Y( N# N4 Pwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>'): o$ K& E9 {( C7 X
write('</ilayer>')
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. H) e5 D" g% N2 a& pdocument.write('</td></table>')
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}
! e& ], F+ ^7 I/ S- S7 x</script>