网页之跑马灯文字特效

zw2004

//修改宽度
3 g1 x4 y9 P9 ?+ G6 [- ]  l( G4 `var marqueewidth=300* a0 s: ~1 V3 [8 p3 X
//高度3 \& ?6 I7 P' k9 Z( p8 J
var marqueeheight=25
: |# j, J+ D% p3 O//速度(1-10)
1 q- i9 ?( P6 ]: P* p; t! Qvar marqueespeed=3
4 H1 I/ J  T7 g+ q* o) [//背景颜色
) x9 h$ j+ ^, n. Fvar marqueebgcolor="#FFFFFF"8 n. K+ C( |2 X7 \/ K+ B( k  P
//是否能暂停 (0=no. 1=yes)?
$ o7 P( A- C" K% a; w2 E. f! ]var pauseit=1. H3 ^0 \$ @3 ~7 d
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//修改显示内容  G, }. ?( }! `9 i
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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; D2 E& t" A3 z+ g  S- C////下面不需改变////////////
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var copyspeed=marqueespeed! \* A% L# L. m  O
var pausespeed=(pauseit==0)? copyspeed: 0
( \% y" J9 R: U8 d# f' Svar iedom=document.all||document.getElementById  J' ]8 P6 ]7 c& G( ~2 ], g
if (iedom). R3 R  k: C  n  I5 l3 X5 q
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>'); `" V/ A  [+ a) q# s
var actualwidth=''( Z; @3 x/ t# B0 A/ U2 B
var cross_marquee, ns_marquee
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; T! ^" b# [' Y3 gfunction populate(){% r7 g. A! x+ Q4 L1 Q$ I
if (iedom){4 i2 j" g+ d" W. z- C0 R9 A; M5 l
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee. b7 w* a, Z# \! ]" X6 C
cross_marquee.style.left=marqueewidth+8, J# v  a8 n. [) i
cross_marquee.innerHTML=marqueecontent
% v! k/ {0 W. ]- c* Lactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth) \$ F# B4 }+ V) |
}
5 C$ e5 `8 J( {: ielse if (document.layers){
, E) \+ y& \1 `9 d1 \" Mns_marquee=document.ns_marquee.document.ns_marquee2& ?, w) w( F- b) a
ns_marquee.left=marqueewidth+8
5 V+ }" z/ a) [1 v: c: k$ b+ ^- Nns_marquee.document.write(marqueecontent)8 z2 w1 z3 \; _3 p3 M9 t
ns_marquee.document.close()6 f# ~, p1 [3 W
actualwidth=ns_marquee.document.width7 W6 y# _7 ^& c8 B5 k- R
}
: F; P: ?4 t3 }( @0 |, p0 flefttime=setInterval("scrollmarquee()",20); y. W# ]0 G; X3 W! [
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window.onload=populate4 q! E* R' f* Q; P7 E/ U
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function scrollmarquee(){
& C$ y0 |$ R+ c. X, ]& Tif (iedom){4 ?" C$ H6 h3 U; N
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))9 g, F9 c; f+ H- h  W& s0 y- H
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
/ N- ]2 B6 ~7 _: D+ W" |else# V$ m  L  _; x7 B! l& |9 R
cross_marquee.style.left=marqueewidth+8# C/ L$ d$ y* W4 e
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else if (document.layers){
- [- p% e5 Y' [# C/ vif (ns_marquee.left>(actualwidth*(-1)+8))8 D0 h8 W; }) [8 r, Q) u8 [
ns_marquee.left-=copyspeed' n# o2 [8 c2 Z$ r1 ^+ M- |
else
2 I9 {+ j2 M6 [7 B& A0 G" V% v* Sns_marquee.left=marqueewidth+8
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}; J5 V7 G, y4 O9 g8 I  O5 p
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if (iedom||document.layers){
2 A# G- H+ h. O8 pwith (document){+ \/ E* E! U% n! n2 V' S
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')* f5 R. A1 w( t- T  u# u# T
if (iedom){
- U2 C! V9 ?: x% swrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
( S, ]% Z9 N, f  ^% `write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')3 @* \' F' a# {' a
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
, x2 B/ H9 O+ ?  Y% mwrite('</div>')! f5 ?) W9 G$ \1 |7 v5 x) ]+ |
}
% A8 U* E  h' O/ Gelse if (document.layers){1 Q) ^- N$ v9 o) J1 A( {8 F
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')5 \4 }6 f( \. p
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')& B. e4 u# M5 h
write('</ilayer>')
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document.write('</td></table>')+ o. D+ R' L) b6 `5 I
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</script>