网页之跑马灯文字特效

zw2004

//修改宽度7 @8 i: p/ b' N' [2 }8 g
var marqueewidth=300) ?% F6 b* e  @9 u. K/ G
//高度
( h. m2 q: X9 H/ n. t; U9 h9 [, |var marqueeheight=25
- P8 r+ M6 A# x5 L# u  e9 L& c! l//速度(1-10)+ h; }7 S9 H7 K) Z% j0 e) d
var marqueespeed=33 R3 b& a& Z+ ]$ Q) x1 v* |
//背景颜色. P1 ^/ X3 |1 p; F7 G8 N, A; ~6 N
var marqueebgcolor="#FFFFFF"
+ y! k, O2 U7 W: K//是否能暂停 (0=no. 1=yes)?5 P* I5 L; ~+ ], u
var pauseit=13 i, ?& p) g/ u
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//修改显示内容7 I. x0 C! N2 q) e* [! {) K8 E
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>'8 b. Z0 M% b! }) @# L6 F( w+ F. ~# c
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////下面不需改变////////////: A" l4 r- |( |3 `9 G9 k9 j) A, ~
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var copyspeed=marqueespeed
6 V9 a3 @- C3 \% F: T5 n& i6 `var pausespeed=(pauseit==0)? copyspeed: 0
/ t( s! a  j; F6 O; Q4 Evar iedom=document.all||document.getElementById/ v& m. }. p2 V' L% R8 S- T4 ~
if (iedom)
# o* }# ]( B% P0 X$ C- L1 r/ Gdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')' t. P. Y' m# B. h' x: n
var actualwidth=''6 F2 U. w) D, {+ I
var cross_marquee, ns_marquee5 {: Z6 U! |! Y" n+ Y* V- n7 L# r8 v
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function populate(){
( B/ `4 b& Y2 c# N0 ?if (iedom){
  j& V5 W- p+ F4 l: s* x' }& Mcross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee$ w4 S- M/ q& K8 _; a* Q3 i
cross_marquee.style.left=marqueewidth+8
  \/ g% H( f4 ]# O; r. f. R8 v$ pcross_marquee.innerHTML=marqueecontent
7 h( J' J% c( e( k9 y/ R! `actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth& x% _; G* r6 R  f2 b
}
' r- U/ ^- _& X; {1 w$ J0 F" L% G0 ~else if (document.layers){* m% ~) c3 _2 q  O9 I; q% I
ns_marquee=document.ns_marquee.document.ns_marquee21 R* V" ~; S% n* Y' [: S1 f
ns_marquee.left=marqueewidth+8
% B8 u  m" {$ v9 H! \ns_marquee.document.write(marqueecontent)
" b: W+ y! @, s- cns_marquee.document.close()
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lefttime=setInterval("scrollmarquee()",20): ]7 H- S7 @- `+ z
}
+ ?1 A. G1 Z+ g& T) hwindow.onload=populate2 h, q& x+ ?/ U$ o

- n4 K/ J. A1 B: [. wfunction scrollmarquee(){, z: x. G: r2 n. z$ |+ Z9 S
if (iedom){$ H* \! u2 A$ h& f9 u! u2 m
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
$ i4 m- \2 o4 H2 v1 b, Z. `cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed- r# u/ o. V8 M# A9 }& n  |
else* I4 I$ I' _7 [
cross_marquee.style.left=marqueewidth+8
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0 O# i* y! I2 @% _! b' G" \# Oelse if (document.layers){
$ a5 V" [4 W% i# Aif (ns_marquee.left>(actualwidth*(-1)+8))
- H, L* ?) S: f* p8 mns_marquee.left-=copyspeed
+ m0 j' F& r# E+ H# K6 |+ q3 \7 @else
  M) ]( F" u) }3 ^ns_marquee.left=marqueewidth+8
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if (iedom||document.layers){
( k  f+ ]! w8 H" m6 cwith (document){
; z1 p& R; h- ]# J6 cdocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')) S+ A/ U/ i4 S9 |8 m/ E+ N
if (iedom){
- K- y; q( T9 Z$ l) ]( H& wwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
) C# k; v  D5 e  b) bwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
# U8 W4 [, o# U) dwrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')& b1 T- Y, G$ H# D8 i- z  f
write('</div>')* Q+ F# T  V- N
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else if (document.layers){
- m4 [' p) Q9 C* F& ?write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
. s4 H% w2 d- i, A) f7 Cwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
% F* \  e3 Y* J- Z+ {$ Uwrite('</ilayer>')# J$ ?, v7 ?' [
}# n) l. z7 B8 h# \1 A
document.write('</td></table>')
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}
9 R5 `% c/ q' r. Q</script>