网页之跑马灯文字特效

zw2004

//修改宽度& l9 o( a/ ]8 L' n) m# ?- ~& H8 I# w
var marqueewidth=300
+ H3 N& F! j. j//高度) R2 f& H& j/ O/ M( T3 F  C$ X
var marqueeheight=25
7 t9 G: x: W0 P/ ^0 o: O7 K$ i, B5 j//速度(1-10)
, m0 W, ?' A0 V. d! Bvar marqueespeed=3- D# i; \! f( w: d+ I* ~
//背景颜色
* M3 x  _) O+ i& Q1 mvar marqueebgcolor="#FFFFFF"
) ^' |; x6 N2 f+ f& n* |//是否能暂停 (0=no. 1=yes)?- Q* f. R. f: U
var pauseit=1
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//修改显示内容* N- J2 c* p2 A1 n8 a0 B# q" _
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; t% ]% D. g8 q) E! g: i+ P
var pausespeed=(pauseit==0)? copyspeed: 0: l) q& [/ @$ b5 `
var iedom=document.all||document.getElementById
( V4 f, r: F- _3 R) a- i/ uif (iedom)
5 ~3 p3 o/ O; ?1 Q: S% J- Z* Rdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
' e4 y$ {( ]0 ^var actualwidth=''
5 ?5 B( j# p  `" E2 Vvar cross_marquee, ns_marquee
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3 @7 d/ |  |, Zfunction populate(){4 x9 r9 z: }/ y$ n! ]# l  r% A
if (iedom){. ]0 F3 z5 n7 ~, P# p) O. i: Q
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
5 j5 B6 X$ @' W5 [6 l4 R, Z2 b9 lcross_marquee.style.left=marqueewidth+8
+ o( }& x/ }. ~* l' }; d& xcross_marquee.innerHTML=marqueecontent9 ~5 d. d6 Y$ ^! X3 B, p! U
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth( i/ l( v7 q( r/ m& w1 O* w4 V
}) _  s% C% t4 Q% A/ [9 l
else if (document.layers){
" s! `9 J2 k7 v) l1 Cns_marquee=document.ns_marquee.document.ns_marquee2
4 n& G6 Q0 r5 ]9 sns_marquee.left=marqueewidth+80 r- j+ A4 b! h7 C
ns_marquee.document.write(marqueecontent)& A3 o7 C5 I8 k0 m: I* l4 y, h
ns_marquee.document.close()# ~4 t# X3 b+ t9 }- j% T4 j9 C8 [6 ~
actualwidth=ns_marquee.document.width6 e4 o/ H# W( X( S' d0 W' f% W
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lefttime=setInterval("scrollmarquee()",20)
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window.onload=populate4 A& z  _; m3 O' q& m
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function scrollmarquee(){8 O5 O) h% o' ^
if (iedom){
/ k8 J' ^2 g( z  `( R- y: jif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
& E; L: G- V( Qcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed# k* c* i; m; W
else
+ {: q" [6 O8 }- f* N6 n2 rcross_marquee.style.left=marqueewidth+8! T- f" j- H( P1 g

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else if (document.layers){4 z, I& X8 S6 j' `5 Y$ u
if (ns_marquee.left>(actualwidth*(-1)+8))& H2 Y4 q; V# ^8 R- S
ns_marquee.left-=copyspeed
3 Z' p% l5 r0 z! o% H9 b- }else
$ R6 s% b! _" r! v8 h. Yns_marquee.left=marqueewidth+8
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}  n5 S' Q& T7 p5 c0 o
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if (iedom||document.layers){6 [2 n' a! G, I6 o: l3 a
with (document){
" d0 T8 T5 @! l: X7 jdocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>'): z/ [' ^3 }- r3 S2 Y+ p9 ~! A- g$ U
if (iedom){
& p+ T/ }9 q( T+ u8 r& A' cwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
4 M+ R2 C& Y+ M2 Q. }8 ?; p. wwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">'), U* w& `8 o$ q# j2 d* ~# N
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')( F8 z4 H# o1 \4 L3 U! H" {' H
write('</div>')$ j1 z0 X6 q' s
}
4 m3 v( Y& C. x4 K% Z4 f% Helse if (document.layers){4 \# A, K2 ^8 [4 I9 j
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')! j" B: X6 }4 Y5 t5 w4 `9 s0 P
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')+ C0 p1 W# p* a: P# Y0 }/ Q
write('</ilayer>')
# {+ `; }1 F5 [}
' i" y0 f: ?* }6 z# idocument.write('</td></table>')6 ~, t* T$ N% }9 s$ m
}
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1 ]% S6 P, L* \1 `  L# r3 D</script>