网页之跑马灯文字特效

zw2004

//修改宽度! Z7 z1 c0 l! d: w5 ?7 k
var marqueewidth=300
1 H6 R! o: J  C3 B5 ^* L//高度! A0 j9 g# r2 ^4 _, a/ N
var marqueeheight=25+ y' S) b0 G+ r0 N, ?2 G! ]& i
//速度(1-10): W3 I9 n. \6 {' ]% z
var marqueespeed=3
  F4 }2 F2 R0 U9 f- h//背景颜色* C+ A( E2 k2 K9 _! m9 G
var marqueebgcolor="#FFFFFF"
; ^. L8 {/ Q' U: @; `2 v" Q//是否能暂停 (0=no. 1=yes)?
! H/ x1 Z! o. C* q# [- W6 wvar pauseit=1; h0 M2 Q! z' h, z3 _8 k9 a4 r
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//修改显示内容6 P" g- A8 t( e1 V0 Q# ]2 ~5 o9 u2 B
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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var copyspeed=marqueespeed
" ?, b, a$ o5 Q  K( |! cvar pausespeed=(pauseit==0)? copyspeed: 0& d7 h2 J- W$ d& [2 H
var iedom=document.all||document.getElementById
" p5 e, ~7 w) ^+ N' i. I6 p" vif (iedom)
8 Z! ?( }1 A. b! ldocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
; v: E; e  R0 a& avar actualwidth=''
/ m& s/ w. X4 {5 nvar cross_marquee, ns_marquee
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function populate(){
* V* ]4 A, m& P, U, t3 g1 q4 qif (iedom){
, c& I) G; h* U- l+ [7 T# t6 bcross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
4 [3 P2 A. b$ r0 _& ]2 ucross_marquee.style.left=marqueewidth+8& |# |4 H; A+ O5 W6 s5 f7 p& G
cross_marquee.innerHTML=marqueecontent  `, Z8 a, E2 n+ m8 o
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){/ y2 z/ J3 Z+ {& p$ }/ r1 w2 K& e
ns_marquee=document.ns_marquee.document.ns_marquee23 m0 K  `% C+ R- N. g
ns_marquee.left=marqueewidth+86 |+ d( @) q) S! N2 ~
ns_marquee.document.write(marqueecontent)
4 q8 H, ^8 I* w" I) `# H! o/ zns_marquee.document.close()
7 j# |% Q0 O" \$ \! O/ D9 g5 Dactualwidth=ns_marquee.document.width
# \" ]5 z$ R$ g% E' O! H+ I7 ~}# U* W  T- S- B% y2 o3 k6 [' w
lefttime=setInterval("scrollmarquee()",20)5 _9 N/ Q) o" V: c7 D7 w) I: `
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window.onload=populate% j: [) ?0 @: b) z' F

% N& b; I% T: X7 W) x2 p8 Ofunction scrollmarquee(){
5 M9 [1 s$ j4 e6 gif (iedom){
6 A% U8 G% _* N0 D. [% Yif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))/ l( r% n4 I+ |' N; u3 j4 n$ \
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
6 F0 R1 z& y9 B1 l( j2 O* zelse
" l' m* ^. F! L" J; [! s1 F8 Ucross_marquee.style.left=marqueewidth+88 p! T: U8 O0 x* ]+ V, o& E
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else if (document.layers){
) Z$ m; ^. |1 R, K3 uif (ns_marquee.left>(actualwidth*(-1)+8))
1 y4 S0 n3 {$ ]& p8 k8 Ons_marquee.left-=copyspeed" l& N- m8 o8 ^1 B. q
else
! p! B4 U* s: {5 `7 L6 E3 dns_marquee.left=marqueewidth+8! Q) k- g8 i1 n8 x
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}
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, `8 P: S. P0 S5 X# r3 sif (iedom||document.layers){& P- \" f& h! Y2 z: p1 t
with (document){' z7 ?$ M! m9 v, z8 C, J) a
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>'); ]2 V1 S3 s7 C; t7 p
if (iedom){, g1 n) O  w3 ^; X4 h
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
" D) o! H$ l! b! ~3 o" Q2 @write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
: N  j# h  j# l$ Vwrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
  u! [( o6 d9 ~$ \write('</div>')
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else if (document.layers){. F' F6 j# j2 L. s% ]
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
( I1 c1 ~9 d* |0 y" Ewrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')# l8 j1 R( O1 h* X
write('</ilayer>')& X' G! B* R+ Q7 V3 `* p8 P, @
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document.write('</td></table>')
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3 y4 v, u5 R7 Y0 \: c</script>