网页之跑马灯文字特效

zw2004

//修改宽度
2 Q2 a9 v$ Z2 R, d1 P9 tvar marqueewidth=300
( `" F. ~& J  d, i//高度6 a0 ?* Z$ a2 n* q3 H7 H$ t! h
var marqueeheight=259 L9 a; D% l* f; w5 {
//速度(1-10)+ v& t$ V: q# ~' {1 a( S1 E
var marqueespeed=3! F: ^  S3 M; Z! X+ K( z
//背景颜色
6 y0 S# z8 u- p1 v5 Q, X) j+ ?# n* @var marqueebgcolor="#FFFFFF"
& c: w, u/ ?; @) J! }- I//是否能暂停 (0=no. 1=yes)?
9 {3 K) t) z, W' Nvar pauseit=1
6 N/ ^% d' E5 R0 p
6 L: z3 S: Q3 l/ V//修改显示内容
* V8 ]# @" x/ D- A/ S7 O* Evar 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>'; l# o9 J: ^8 v8 B! }

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. R# ]! N; W4 V3 {////下面不需改变////////////
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var copyspeed=marqueespeed$ h1 C3 l; `2 Y/ K2 k
var pausespeed=(pauseit==0)? copyspeed: 0
) g& D. G8 k1 @var iedom=document.all||document.getElementById
  }% S# A& t7 x* E0 l) wif (iedom)' @/ O* Z! B& m( a2 `- }- }
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
. q/ M- E0 s! P1 g% N5 Ovar actualwidth=''
' |: M8 t* s& N2 o- z2 B5 n7 Kvar cross_marquee, ns_marquee; I8 r# c+ |- {) Q

5 r0 a9 X* ^* f9 T- P/ w2 x1 Ffunction populate(){
0 _; q9 c& ?7 ~0 vif (iedom){2 Y: d# N5 j/ r
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
0 L, ~6 n+ M" `: @7 k# o: mcross_marquee.style.left=marqueewidth+8$ ?! q% N  ^% _7 }& C( t
cross_marquee.innerHTML=marqueecontent. Q& c& {; s9 [3 c1 e5 z0 S) V
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth. \6 U5 K8 T; k& E* G, @1 z& ^
}
0 H$ A* d' t+ p) }- v$ H  _5 `. L0 E1 r: P- \else if (document.layers){
0 d5 {" b( Z! @  t/ ]7 b& qns_marquee=document.ns_marquee.document.ns_marquee2
3 s1 h3 O5 @& x; a* ins_marquee.left=marqueewidth+8
- k  w( L& y. z. R% C, }ns_marquee.document.write(marqueecontent)
: Y  ^( E# e6 E- pns_marquee.document.close()
! v- B7 G( d& C9 j3 u. A( e) w" Nactualwidth=ns_marquee.document.width
# S  `. Y2 F* i}
4 M/ @6 @1 R7 Ilefttime=setInterval("scrollmarquee()",20)
& [) H# _2 L$ P2 T$ z}
# q" t6 {' O5 m. X+ jwindow.onload=populate3 P  M, n) o1 ?# m& P* N
1 S) N# H8 }) V" I" c  @! A
function scrollmarquee(){7 h: }4 B4 U! H' @
if (iedom){3 t9 e6 `' W: n) E3 P; Q2 r
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))5 |4 O9 Z3 i; y' J$ h6 ~
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
/ V$ u; G' ~1 s/ A: ?8 C5 X! `else- v; e# y- W/ h$ y1 J
cross_marquee.style.left=marqueewidth+8
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}, `7 P$ {# {% J1 \3 z- Q& V/ X
else if (document.layers){2 z6 y; r; ^. s5 p
if (ns_marquee.left>(actualwidth*(-1)+8))* m( V4 t8 e/ a  W- a
ns_marquee.left-=copyspeed
" N  f% b# L6 W* felse
! n$ [& S& J! A# d6 z3 B3 bns_marquee.left=marqueewidth+8
4 N' W  S! }3 M/ v3 ?}
! a9 Y* W, B8 |5 z  J# M4 U) U}
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+ i8 W+ k* {5 e; Tif (iedom||document.layers){
9 P$ L% y- J9 m. lwith (document){
2 K6 F3 c" T6 @( {$ Rdocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
1 B. ^. Y) ^7 G" U6 y! {if (iedom){+ ^3 t9 m0 k, a& v2 R) U. X
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')8 d. a( p- H1 z& ]
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
' z" X8 h9 h9 Z( J2 V, N/ dwrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')0 G6 u: j% J$ R8 M$ q, L
write('</div>')
+ C9 K: ~9 r9 L$ ~/ [7 Q' ]& n}: m) X  p/ z! W
else if (document.layers){2 l/ A' D, o: |( N1 H
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')% ]1 v  j: U$ K* k8 h$ Z9 X' V, Q
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
& N* M7 `* B6 P, E5 g+ D4 ewrite('</ilayer>')
  \( g! d" n# k# j0 j5 q}
, Q0 Z% K& I/ `document.write('</td></table>'), Q8 T$ Q6 w4 |" s+ Y+ t+ z' K
}+ I/ }7 o& Q: M4 b* i
}
- a+ H6 J2 W6 z/ Q</script>