网页之跑马灯文字特效

zw2004

//修改宽度
; c) h7 q7 I6 z( p% e/ u: D6 qvar marqueewidth=3006 ^+ s2 p# C* O! d! S
//高度
* f% a2 x. k5 }- Y7 zvar marqueeheight=25/ n& h  k" S4 c3 O6 M) Q
//速度(1-10)3 E' t7 W2 N8 ?: H
var marqueespeed=3$ Q4 h7 P  H, G3 o: c: R
//背景颜色+ I1 Q, \5 ^8 Y- t0 J: `$ `2 m
var marqueebgcolor="#FFFFFF"
* f' @% i# o% N/ s6 G$ X4 `//是否能暂停 (0=no. 1=yes)?
# e" K8 ~! y) C5 d) t! nvar pauseit=1$ B0 l8 B: D' J

5 ^+ L8 [: F0 K' ~//修改显示内容
" m% ]3 Z2 b3 rvar 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////////////
5 j7 O& |; o3 F# K7 \
2 i$ a; i5 E7 v. v, }var copyspeed=marqueespeed
- W; o" `: `6 J; z) J  A( a$ r" Xvar pausespeed=(pauseit==0)? copyspeed: 0, s* q% V- I: S8 l/ X5 l
var iedom=document.all||document.getElementById+ P6 a6 _0 s6 R' H
if (iedom)+ t7 ]2 T1 s4 c3 o% m
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
% W& X+ S, b% Y9 w5 T, j# fvar actualwidth=''
% w5 i6 t, s8 o2 a, h1 dvar cross_marquee, ns_marquee% K/ H7 ~4 m+ l. e5 d6 n( q/ @( h

# z) d, `5 U' R' [" F3 a3 mfunction populate(){% Y& M% w* @# |. C+ ]  f: g2 M2 K
if (iedom){
( r. y2 Q0 l+ W4 ocross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee5 S" u. _7 ~- K6 @7 f! P( U8 H
cross_marquee.style.left=marqueewidth+8
5 ^  T6 u) I% G; L8 fcross_marquee.innerHTML=marqueecontent" O# j0 H0 d, V5 d+ Q! M) L
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth7 \8 Q8 u, T" G% L9 e9 y
}
( [- |+ |0 z7 q, A3 Q  Qelse if (document.layers){" h- }6 I+ n2 ]# f  P
ns_marquee=document.ns_marquee.document.ns_marquee28 j3 y0 H- S) H1 t8 P
ns_marquee.left=marqueewidth+8! C' x# i7 l4 d) P# Y# a2 d/ u
ns_marquee.document.write(marqueecontent)
. |8 {, G/ N9 O2 b* s- _, O7 |( C. j- sns_marquee.document.close()( b1 z# Z' a& R* m3 I. }9 t. J+ J
actualwidth=ns_marquee.document.width
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/ s) q) r9 l' F9 Blefttime=setInterval("scrollmarquee()",20)1 _% D" O5 l! n# E9 |9 U6 A& }7 N
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window.onload=populate+ ?! N/ r) i! U1 c+ U

" y- }" b% Z$ D3 vfunction scrollmarquee(){
0 e; r% ^. Q$ T) I& @  d6 Jif (iedom){
& P- K' K& l6 z" K* ?/ G6 e0 V0 Z" hif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))" W( T* H& {) J0 F$ \
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
8 v$ e% `2 `* z1 \else
% P; Z3 G, a7 a4 R! h5 g& {% r: Z) icross_marquee.style.left=marqueewidth+8. w7 B6 T* H6 i' I8 P9 _

* ~- @1 b- H$ b5 D$ H3 S9 ]}
# c% `( U+ R9 y3 T! Z2 Delse if (document.layers){
9 L0 D$ Y7 Z7 P5 o2 b& b4 Iif (ns_marquee.left>(actualwidth*(-1)+8))9 T0 y7 z0 A: q6 v1 w& d& ~7 y: K
ns_marquee.left-=copyspeed* G& j! d3 Q, d8 |% m
else4 H+ a! l8 U' g2 S
ns_marquee.left=marqueewidth+8  P+ b) G4 f3 v1 }
}  x9 \1 H2 ?$ W2 f
}
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% o2 D8 Y+ U1 Q9 \; Pif (iedom||document.layers){* [; Q$ I) q/ \
with (document){* y5 h8 C$ [; J$ r' ]
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>'). l" N  _7 s$ V$ a
if (iedom){9 t: h# ~3 f7 x! `5 Y; j
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
) _* L, S' \- p1 S( P4 Iwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')" i0 N$ Y0 ?- W! V3 b2 {. X
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
( g- G/ ^$ m" hwrite('</div>')
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else if (document.layers){
4 U( {! b  y: u' `8 I( l  X! xwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')$ y, a# i' {: B$ ]
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
3 b. }, S' |- G: c4 Cwrite('</ilayer>')
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document.write('</td></table>')
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</script>