网页之跑马灯文字特效

zw2004

//修改宽度9 ~' S* k, J% J4 d3 J' A
var marqueewidth=300
& m" L% s6 ~4 U6 k, e! t+ F/ j# a//高度3 N. d- c* @1 y& E- l2 v
var marqueeheight=25, \( e& t* c2 a( a
//速度(1-10); z; c6 A3 C& h3 Z/ `: Z
var marqueespeed=3
5 m& ^" W1 Y/ v" k# n8 U' ~//背景颜色
+ ~! D. E( B" F1 {var marqueebgcolor="#FFFFFF"( T7 h; Y2 [) j
//是否能暂停 (0=no. 1=yes)?# K/ x% q" Z" t
var pauseit=1+ ?! J$ }" o: N( @
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//修改显示内容
; \& t8 R& u8 Q( e- _. }4 Jvar 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////////////, O9 e6 s- N) Y, l9 R2 X

0 ?7 s% U- H* r' S& g( U8 Mvar copyspeed=marqueespeed
0 f) {- F* V" t7 M5 J1 _, L& Ivar pausespeed=(pauseit==0)? copyspeed: 0
! R. ^* G+ W- a: Z$ U. x" p) \var iedom=document.all||document.getElementById" R/ Z7 m$ y! s9 X2 _
if (iedom)9 W4 [. b2 l3 _9 S, y
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>'): g; O6 F& ?; \7 K9 h8 y
var actualwidth=''; `% [! n  x" V6 p
var cross_marquee, ns_marquee9 g" X5 V# U5 R4 h/ J

' R: Z+ {2 @; t" r# r" I8 o5 Ofunction populate(){
& Y- A! Y$ D- Q2 N( P4 _if (iedom){
1 d* a' j9 J' Jcross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
$ ~) N) o  N  M& [3 @6 Q" ~1 L; L) ?cross_marquee.style.left=marqueewidth+8. J: s2 j5 c! p$ B( m0 T$ P
cross_marquee.innerHTML=marqueecontent# I* x# H) Q! A
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth' x* a# j; z* B/ Q' s4 W9 k' P
}
, B" ~$ n  k. x5 Xelse if (document.layers){" B/ u) y# m3 L4 v
ns_marquee=document.ns_marquee.document.ns_marquee2+ o( q" R7 R% ^; M
ns_marquee.left=marqueewidth+83 ~' u7 D( B# T: x& T. M
ns_marquee.document.write(marqueecontent)9 s' b) C+ G: Q" d! S
ns_marquee.document.close()
9 }" H: W& r) N# w* xactualwidth=ns_marquee.document.width
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  X& m) B; e  B! Y; O8 {5 m+ f/ ulefttime=setInterval("scrollmarquee()",20)
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window.onload=populate
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function scrollmarquee(){
9 ]1 H( v7 @! C' z8 e9 |; `if (iedom){
; h# T9 s6 b4 o: Y' I( aif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))" g( g  B. q/ ~2 A9 D5 p$ @9 g
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
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4 w. P# I. C0 H$ \3 Dcross_marquee.style.left=marqueewidth+8
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else if (document.layers){5 H5 M1 a5 }, m* v
if (ns_marquee.left>(actualwidth*(-1)+8))
$ l9 G7 v$ L  N& v: m% cns_marquee.left-=copyspeed
) F. E8 |0 u; ~* O* ^else
+ v4 n& r, P0 S' T6 Q! U& ]ns_marquee.left=marqueewidth+8
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if (iedom||document.layers){
4 o3 D9 k  q0 }7 G% W" A$ L0 uwith (document){
8 \* n: J$ T2 z) c7 ?1 B. V& ?2 t% }document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
7 \' z; F/ |$ Wif (iedom){. J* K9 h0 ]5 j! ^. M6 X" y
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')# B1 E. W; j; r% C' C: Q3 @
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')4 L( i3 R4 K& u- _; f
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
8 M9 h' R% s, g1 F: k. Kwrite('</div>')% x/ X  h* i0 i0 G5 I
}4 U$ g' w  ~% Y  X+ o1 _; S, o
else if (document.layers){' B2 [4 y( _! f, z6 H* T, P
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')8 G) L  Y& ?0 k* e
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')$ o0 s# ]# u5 y
write('</ilayer>')) j0 e# n$ F: }; U4 `* C
}
  _+ U$ |6 `- l, u+ u# ?/ i# gdocument.write('</td></table>')" s9 D2 F& L% j2 u- X
}
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</script>