网页之跑马灯文字特效

zw2004

//修改宽度2 F2 [# U1 `( M' J% w; `- K
var marqueewidth=300& q7 c: n& W# q/ P! \+ p
//高度: r& A* W2 j( J9 _' Q& k( H0 v
var marqueeheight=25. _" `/ T. o4 f( Y  o1 k& B: S. ]- m
//速度(1-10)
3 a1 G/ a+ _6 M3 ]9 c/ v4 i. avar marqueespeed=3, T9 [& _2 h# r) h/ B; ?
//背景颜色9 m0 e' k( b* V2 m, V
var marqueebgcolor="#FFFFFF"
8 C# Y% x2 `& L" B# Q. m) X; E//是否能暂停 (0=no. 1=yes)?
) q6 Z  z4 I1 bvar pauseit=1
& q5 n9 }6 w$ v, O( [) M$ x
! m! d1 p% @: F# W//修改显示内容
; q1 \$ w: L/ J3 N0 Dvar 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>'6 ~% C# G2 i2 _1 K
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////下面不需改变////////////
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var copyspeed=marqueespeed
& E! A: Y! Z! I$ v) R. lvar pausespeed=(pauseit==0)? copyspeed: 0
9 ?+ y  ?5 @  {- ~, O/ Qvar iedom=document.all||document.getElementById* b( O& r7 s; u- b- Q. V
if (iedom)) f' y1 ?# \8 l7 K# J8 a9 X
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')/ T) E5 K) H/ \4 t' l! w
var actualwidth=''! p; Y0 C8 t5 H* E3 P. K) e
var cross_marquee, ns_marquee
6 y) P# V6 o$ h5 s2 X3 Y+ X' |
" `2 t4 p3 _3 m( `8 zfunction populate(){( O  v) \9 o' n4 c- t
if (iedom){, r) f3 T2 A8 m: J5 B8 a
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
; d6 C0 [# H+ m7 G4 D5 p& across_marquee.style.left=marqueewidth+8
" W, u; h, C9 t& Y3 i% C: D  scross_marquee.innerHTML=marqueecontent
  z7 `( L; |) ^; c+ W( C- _# `2 b" sactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
8 w, H  D, ~6 K$ j+ m}
9 {/ N+ O0 ~9 w2 w3 q1 j6 _else if (document.layers){4 }  T' a- r0 i: d5 Z6 e9 j
ns_marquee=document.ns_marquee.document.ns_marquee2& Z0 \9 {9 Z7 @: f9 M0 E
ns_marquee.left=marqueewidth+8
; |' K4 j# [& P$ c/ ons_marquee.document.write(marqueecontent)
* N6 t7 J1 ^- ^" {ns_marquee.document.close()9 b8 x$ A! N$ g$ @0 ~- `
actualwidth=ns_marquee.document.width
/ l  {8 ?1 ~. P8 N}! Y9 q1 i! \: ~. p: y4 n& B( J
lefttime=setInterval("scrollmarquee()",20)2 `, z& U# r# [( m3 |9 Q5 `
}" }' D! H* _* T6 d0 [8 o
window.onload=populate
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function scrollmarquee(){
5 c; [9 l% Q# n8 A/ Qif (iedom){/ w2 Z' @2 T: ]# @
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))1 u# @! o7 }& [" j7 y
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed1 a4 e0 T$ i% s/ H
else
, G6 Q, W2 g. dcross_marquee.style.left=marqueewidth+8
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}$ c* z- B5 `2 q: o$ P
else if (document.layers){
( V- D2 S: C! ?& L' S# c' D- Kif (ns_marquee.left>(actualwidth*(-1)+8))
1 s6 t( e7 f, ^1 P! J/ a2 ?ns_marquee.left-=copyspeed! U4 E' S: |* d& ~
else
- \/ U9 e- m' L2 uns_marquee.left=marqueewidth+8- n1 t5 N8 m! ^; m: r( N# F
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}
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if (iedom||document.layers){
0 k' f0 n; l8 b( P2 x1 N2 wwith (document){
7 b% g, E- q9 i; y7 ~document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')% `" a; O: D( b7 z( A
if (iedom){
( q3 n% W; s/ e$ J, T$ j0 Wwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
& E" C$ k+ @, u$ W- [8 Hwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
& m" \7 a: n8 `  f' ?: x3 {write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')6 F1 x9 x2 @" R8 s
write('</div>')! l1 i8 j) B3 t0 v% q" M0 d
}
# G: J2 j4 E; selse if (document.layers){
* ]6 B4 \( `: q" Swrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
& z8 ?4 j6 @1 W* P% c- Zwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')1 r  G3 c& H; a" V/ Y" c
write('</ilayer>')  t" `. ]& o$ D0 \) r3 p* n
}
% K+ ?; L# C) q8 x* \/ k5 U! Ydocument.write('</td></table>')
( E. v; ~) O/ u}
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</script>