网页之跑马灯文字特效

zw2004

//修改宽度" S6 P  n5 c8 q) o& Q! N1 H
var marqueewidth=3000 {" s. Q5 ^" g7 ]  r/ e
//高度
! |# L! p8 k2 T0 yvar marqueeheight=25( e7 Q: m! x3 `3 Y
//速度(1-10)
8 K  w& H! G2 ~& x1 Rvar marqueespeed=3
& D7 P5 }2 C& t//背景颜色) j. |7 g3 k# k% V$ n
var marqueebgcolor="#FFFFFF"1 K8 i% _5 F4 R* A2 e8 \
//是否能暂停 (0=no. 1=yes)?7 A/ Z+ E4 z0 E8 S: @; T
var pauseit=1
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. V9 U0 J) S0 }/ U: y; f! S# L//修改显示内容8 g7 n2 ]( n; r/ D+ B; r
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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( Q" H$ Q1 L9 E4 z////下面不需改变////////////+ a1 e6 C3 d8 J6 W# t
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var copyspeed=marqueespeed
; N5 ]; l' F% Vvar pausespeed=(pauseit==0)? copyspeed: 0  [: k1 N5 Q7 ^
var iedom=document.all||document.getElementById2 X3 }8 ~' f( Y9 F+ S4 N8 N! d
if (iedom)
5 j' U; P! p1 d) ^+ v0 e/ ^5 \document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
3 b1 x* R& y6 u" pvar actualwidth='') r/ ^; D! C5 O
var cross_marquee, ns_marquee
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- V# B, ^8 T) t* F& y/ E) Tfunction populate(){8 j4 t# p9 ]. o2 T$ ^. K
if (iedom){/ g5 `5 Z$ ^- {) t, y
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
$ H, a4 v0 C, p- dcross_marquee.style.left=marqueewidth+83 B1 c, e, O1 p! p, d0 P" U( V
cross_marquee.innerHTML=marqueecontent
# b- \& M* N9 A9 ?* Vactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){( \, {8 I: b: ]6 W! N* L9 l( V
ns_marquee=document.ns_marquee.document.ns_marquee2$ U6 E& c% w$ @9 h# s* V/ P% z
ns_marquee.left=marqueewidth+8; @( l1 C* E/ G% M
ns_marquee.document.write(marqueecontent), @* G" Y' N( o, U& z( w# M! y
ns_marquee.document.close()0 E$ W$ v8 a$ X3 Q5 N7 O+ q. V
actualwidth=ns_marquee.document.width7 d( ~: x3 b8 ?: I8 ?! {) w, |
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lefttime=setInterval("scrollmarquee()",20)
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window.onload=populate+ m- Y# n$ W' P$ d* ~
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function scrollmarquee(){
' O: m6 G0 Q% o8 lif (iedom){" i* p0 G+ j9 s" h
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
: S0 t/ x* j4 R) @cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
6 [% f3 m3 F$ ^- ~; C! w8 Celse/ }' F+ n2 H. l3 P5 P# m
cross_marquee.style.left=marqueewidth+8) ~$ r7 b4 D' ?, h1 P' B4 K+ U

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else if (document.layers){$ Q  i: X) ~% N6 ^1 y
if (ns_marquee.left>(actualwidth*(-1)+8))
% q  [# }5 |+ v- {. |* lns_marquee.left-=copyspeed
5 R# M- m; U) C) Selse2 |+ l  X/ ~1 X+ ^. r0 w
ns_marquee.left=marqueewidth+86 Z5 c4 o9 l( A7 ]  g2 E" V: u
}. b; J* r$ l2 L
}
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( p% X  M, ]+ w6 D, q  t8 w: q% Sif (iedom||document.layers){
; K$ X# s- b$ l1 m0 r2 Awith (document){; I  ?& R; ^. \' A
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
7 w8 {2 r; \* R% |if (iedom){; s+ ~% Y' _. w6 C
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">'); o* U% S% N2 t$ _9 `; U" X
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
' T* X. u: V- z8 V4 N' Twrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
6 f& d! W1 `2 G/ X/ o0 Cwrite('</div>')
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else if (document.layers){$ }' p0 g  Q' {" o: r
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')) L. R) U! K0 H' h1 ^
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
* y6 {3 C( r$ J7 J/ n' Awrite('</ilayer>')8 s1 s; P9 E, N6 F2 R
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document.write('</td></table>')
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</script>