网页之跑马灯文字特效

zw2004

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var marqueewidth=300) s) [4 ?# k# F
//高度8 o# Z$ s; _3 j) B1 ?% u- Q
var marqueeheight=25
. F0 j! m4 Q  F9 }7 l/ c//速度(1-10)
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//背景颜色0 ?, I0 m1 j3 x! W, A( |
var marqueebgcolor="#FFFFFF"
4 h8 E! L" `$ h* C$ i//是否能暂停 (0=no. 1=yes)?
9 {$ O4 G2 R( ]& h6 T* mvar pauseit=16 E& k9 z: w% s# u9 W4 i

9 V: C, y; |& j//修改显示内容9 w' {0 H( J5 N: R$ R
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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9 H2 c: Q" O. }" i+ {/ Svar copyspeed=marqueespeed
# |3 G. d; M1 s& e1 Z4 m) gvar pausespeed=(pauseit==0)? copyspeed: 0( A2 {1 c2 P7 |( h- I- ]
var iedom=document.all||document.getElementById
' H8 h* N; K+ M; G* u: Aif (iedom)
6 J- p+ v( R' t: f9 J3 idocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')% e: C; Y  @; W
var actualwidth=''3 c7 ^% J& B# K' A3 f
var cross_marquee, ns_marquee5 R4 b3 J: M+ ~2 U: g
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function populate(){0 ^7 n6 P; N/ k3 z! H8 v
if (iedom){8 I* G3 P' ~. X: V- Z5 A
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee0 I4 [  V0 _  N5 h) G
cross_marquee.style.left=marqueewidth+89 J: y# j6 S1 z8 f2 k0 w  g/ N8 S% z
cross_marquee.innerHTML=marqueecontent
# S* O/ W& c# }- R# v5 sactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){# n7 `3 b+ D4 b1 H, Y
ns_marquee=document.ns_marquee.document.ns_marquee2
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ns_marquee.document.write(marqueecontent)
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lefttime=setInterval("scrollmarquee()",20)- W$ w% Q6 z/ f+ q
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window.onload=populate; m. ^5 D9 I. Z+ n
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function scrollmarquee(){! b3 d4 Z" |# n. G9 Q
if (iedom){- b6 i5 g9 j  q9 C( @. |, n5 J
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
+ r8 `3 a& n; V  Lcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed7 O- [) t; g/ V
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cross_marquee.style.left=marqueewidth+8
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else if (document.layers){; ^5 N' l' T' V1 c
if (ns_marquee.left>(actualwidth*(-1)+8))
0 s# T# v$ s% O% Fns_marquee.left-=copyspeed# Z: y" t: ~7 i6 c' W- q7 o
else  l; G7 K$ M: @* k% d
ns_marquee.left=marqueewidth+8( `  H5 B1 m4 r9 D) J
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* k- ^) y- o. ~" V! e! Xif (iedom||document.layers){
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document.write('<table border="0" cellspacing="0" cellpadding="0"><td>'), ?# {$ v; m  G: F
if (iedom){- S' A% F; ~" G+ a& \  o; W
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' ?- {0 e; z* }- o8 u- ewrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">'): s) W4 _' i/ _& W6 {* c
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>'). R# {  j7 Q6 f& f, s& N8 p# J% T
write('</div>')* j, g' r0 C& v) I
}
$ n5 [, \$ x! R% l, k' uelse if (document.layers){- `( Q  T" ^' V9 L
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>'): U  C7 r- t7 G1 |7 a6 j
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')$ T. A- L4 _; X1 m' I: |
write('</ilayer>')
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$ u! n* ^; v" W, ^' g5 U) p) ddocument.write('</td></table>')' d4 W% e: @0 k" T
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