网页之跑马灯文字特效

zw2004

//修改宽度
! B6 P( g6 R* Q0 W  J/ x2 j- Z$ ?var marqueewidth=3005 i$ ^) i! g& G* }* B8 F6 e
//高度# o: @5 i' ?7 l! D& w
var marqueeheight=25
+ i; y( p4 r" u5 G5 W* }( p! u, D* G//速度(1-10)) C/ L5 V7 S! Q1 o6 f  `
var marqueespeed=3
' g9 T8 I! s& R//背景颜色& D5 Q/ t+ q  L! ^3 x
var marqueebgcolor="#FFFFFF"
6 P4 f, k7 @! @//是否能暂停 (0=no. 1=yes)?7 n- ?: K0 b( R" v
var pauseit=14 W9 P1 b; R% M8 a& }3 h! |
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//修改显示内容
6 G# w8 _+ a3 o0 g; B/ Yvar 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>'1 {& K7 S/ L6 m+ b

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, q9 Y! `9 ~( n# |, ?! u////下面不需改变////////////3 O8 m1 F( `9 Q. F8 x; r
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var copyspeed=marqueespeed
9 H3 |; f' o/ Dvar pausespeed=(pauseit==0)? copyspeed: 0! e' |( N( R) s
var iedom=document.all||document.getElementById
. L- m# R0 }; {/ s0 b  ]if (iedom)
2 i" u+ |0 y* f. Wdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')( _% v% ^- H3 X' L+ m
var actualwidth=''
( s' z  ?( S) n0 R) D  b; p$ avar cross_marquee, ns_marquee
# a5 r. G4 D) Q3 K$ i! o; E' J+ s/ I! F  y5 N# O+ L
function populate(){4 l& y( V' _2 k
if (iedom){. g  R. P+ r, \, F; X' ^
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
/ p# g8 }. H$ T* E% D: i2 Y% Fcross_marquee.style.left=marqueewidth+8
: ]$ Y$ j( h8 J0 O4 y# q; ^cross_marquee.innerHTML=marqueecontent) k7 G2 J0 D& d" r
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
) J1 Q  t8 r" W9 G) T* l+ [}
* V4 Z3 B6 W9 M- Yelse if (document.layers){
' Y7 r& X, r& W8 zns_marquee=document.ns_marquee.document.ns_marquee29 `5 u  @4 X! p* k) S" `
ns_marquee.left=marqueewidth+8* N6 ]2 p0 [9 }- I8 ~# R
ns_marquee.document.write(marqueecontent)
% e2 [" O  X, d. gns_marquee.document.close()3 a. B  f6 z4 m* q! D
actualwidth=ns_marquee.document.width
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: V( E( r3 z" J/ J  n5 Vlefttime=setInterval("scrollmarquee()",20)) v$ Q! s4 J7 P6 p
}
. w2 }/ O% c0 @# Q- i- @window.onload=populate
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! G) V  G% \) ~" Y9 ?function scrollmarquee(){' x6 o% O4 f' F8 i; M
if (iedom){
7 K0 k6 V4 ^  p8 W8 S$ bif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))1 T' p+ \# I2 Q) F7 A4 r, O0 G; \
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
# d6 _6 S# @" P3 q' N4 x$ [else
+ f% ~; V# \  v/ L) `cross_marquee.style.left=marqueewidth+82 ?. c, O3 b& ^5 r' W
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else if (document.layers){
5 n: f" W# V" ^. @7 Oif (ns_marquee.left>(actualwidth*(-1)+8))
/ h0 y  N( d2 q' Mns_marquee.left-=copyspeed
0 f5 W: J- Q6 p( M2 I9 Melse! ^, o- s: f8 o6 K
ns_marquee.left=marqueewidth+8; `# ^, g6 l0 ^1 ]
}
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if (iedom||document.layers){
8 Z: r' D9 a. N1 Vwith (document){2 P8 ?& V! F5 f& p6 K7 I3 j8 D
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
7 h, Z; \) G- @, R1 a( Vif (iedom){$ K; E5 s- F, Q. z
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')3 L: V* T& R5 |( ?
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')  P+ F1 t# z) @6 z$ @
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
& O) S4 s6 ]: rwrite('</div>'), k9 |+ F! e/ ?
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else if (document.layers){) I2 a3 V" O, }9 ?8 {
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')  k8 x9 f- P6 L4 J6 I, c
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
4 G1 l$ k- P" }4 J, `. h$ [% s% Zwrite('</ilayer>')
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document.write('</td></table>')7 _) E. o0 ?, N2 |' w: r
}
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</script>