网页之跑马灯文字特效

zw2004

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var marqueewidth=3004 N  h# ]) P, X! s5 z) N$ Q# F
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var marqueeheight=25
9 _& G6 c5 ~( A, c6 n" c6 b  Z+ @//速度(1-10)
& v' x! W5 m' B% n3 cvar marqueespeed=3
+ t. O$ }$ H+ w! p' b% p//背景颜色
3 Q; H2 A. A! [5 W" T- h  @' }1 u- Avar marqueebgcolor="#FFFFFF"
6 Z7 ]( |* v. _# q1 b* i6 r//是否能暂停 (0=no. 1=yes)?; F! K1 t/ @3 A7 J) i& v) d! Z% q
var pauseit=1
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" X- s5 y0 y* u. i//修改显示内容/ D" S2 W3 f/ v* B" l
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>'3 n6 v, h; j( H0 u2 \

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////下面不需改变////////////  t% D$ F$ b4 x( Z& g
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var copyspeed=marqueespeed
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) f( ]4 d( R( T) U# B+ x; Tvar iedom=document.all||document.getElementById5 r: b. K: t7 N  M' e9 G
if (iedom)/ k( O3 J# w, E( z1 \
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
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var cross_marquee, ns_marquee$ R' U0 a5 S: m& k: I2 y
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function populate(){6 W5 l. @5 S( W+ ~: s9 L
if (iedom){
) X% P8 z$ d0 I% ]cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee4 d& D4 O" [# i2 S: M+ \
cross_marquee.style.left=marqueewidth+8' X1 Q2 m( |* Z  K" m$ {1 g9 B
cross_marquee.innerHTML=marqueecontent6 a/ f, d( G& e
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth) M- v# r! p$ Q
}
4 O3 w! T! S/ m1 \7 ^! C# Kelse if (document.layers){& B; h4 }  ^/ ^% y' P' H5 \
ns_marquee=document.ns_marquee.document.ns_marquee2
7 F* a7 q9 `: Sns_marquee.left=marqueewidth+88 `% i& L* x  b. U- q- D+ V$ S4 c/ z+ S
ns_marquee.document.write(marqueecontent)5 l" }1 [, g- e. J- y; t9 C
ns_marquee.document.close()& }* I4 t4 l: a" U+ T% N' R
actualwidth=ns_marquee.document.width  ]* A( w) {) d+ [+ t, M5 U5 ~
}
: g/ X8 y& d/ y/ |( X% Alefttime=setInterval("scrollmarquee()",20)6 B3 m: z7 p" ~# o/ g3 I. k- ~8 m( v: M
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window.onload=populate2 C2 @5 w9 \1 @  F) N% h
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function scrollmarquee(){
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if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
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cross_marquee.style.left=marqueewidth+8
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else if (document.layers){2 G$ ~0 V* W1 G4 ]; W% @
if (ns_marquee.left>(actualwidth*(-1)+8))
7 i! G- s2 H$ Q4 D( I  D3 hns_marquee.left-=copyspeed
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ns_marquee.left=marqueewidth+8) F  U6 e% q7 i6 n# K. a
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if (iedom||document.layers){
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document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')& D0 Y3 r3 n; J
if (iedom){7 L5 d' o( T5 |+ q+ {$ h/ z
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')! {( f3 Q( ~# p1 H
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
6 z. ^. P9 @8 L1 [" [write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')6 s) {7 f: C4 v) S! p! E, t
write('</div>')
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2 }% J& T; B0 Q7 c6 K0 ]else if (document.layers){
% o7 D( H/ f# Y" ?write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')3 L4 v3 v$ Z- @4 T' x' J+ E. F
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
5 e2 X' y4 d7 Uwrite('</ilayer>')
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document.write('</td></table>')
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