网页之跑马灯文字特效

zw2004

//修改宽度
: f) z* W, _9 _+ rvar marqueewidth=300
' U9 O6 |9 {* j* a  ~0 Z: ]) I/ h//高度, a: r  F* J: L, V8 |
var marqueeheight=255 c2 R8 K6 D" r5 k/ J+ I1 M, Z
//速度(1-10)
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+ K9 t8 U0 S* S" K) ?+ v; m" T% B//背景颜色
- h1 {' a  m* `3 _) S: z- J9 Ovar marqueebgcolor="#FFFFFF"
0 j& X( G' W/ t//是否能暂停 (0=no. 1=yes)?' q; u; ?# K7 s1 n+ y1 ~
var pauseit=1) q( T" U2 o5 s- J1 Z, ^% D
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//修改显示内容
% ]% d& W* K! m# tvar 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>'% {: F0 i7 n4 m0 w8 d0 ?

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8 Q' {% [& A4 n& h; l  e5 K& W////下面不需改变////////////
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4 I( G0 Q" a. H" r& F7 Q7 Uvar copyspeed=marqueespeed6 d. }( \1 q) B" C
var pausespeed=(pauseit==0)? copyspeed: 05 ]: x* s7 t1 U$ k. k  {$ B
var iedom=document.all||document.getElementById
: f+ u0 |, u3 gif (iedom)9 i4 A& F4 n$ o& _1 r: W8 ~# u
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
/ b$ W- _& J. ~( L* E$ K; Nvar actualwidth=''
* D2 h( d- T0 F  f% q/ f' Xvar cross_marquee, ns_marquee8 @, w5 F. J: g7 I1 F3 @
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function populate(){% V1 ^; `. Y$ V4 H; p* W
if (iedom){
# \- I/ {4 S6 m' Across_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee7 A1 f( U$ L0 ~4 N
cross_marquee.style.left=marqueewidth+8# f$ y5 U/ X" J) f3 d8 ?
cross_marquee.innerHTML=marqueecontent
6 y* c6 H; w, mactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth# n# q$ }+ _+ o! S
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else if (document.layers){6 X( v. r5 b. s- t6 |8 l2 O) Z
ns_marquee=document.ns_marquee.document.ns_marquee26 l- u3 @" r9 X8 h9 u6 ?
ns_marquee.left=marqueewidth+8
% K, A1 a2 X0 d" ~: Y; B/ f! `ns_marquee.document.write(marqueecontent)1 l! M0 G' n% J. r7 w
ns_marquee.document.close(): f- M, B4 F1 t* G- k5 }% W
actualwidth=ns_marquee.document.width$ H1 U. y9 S2 E
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lefttime=setInterval("scrollmarquee()",20)
3 h% f- L! y8 \* {}
9 ]7 A8 ]. ]" f- B7 Z( u. Y' uwindow.onload=populate& `. G( w, S% U2 c$ L0 W: e
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function scrollmarquee(){( J: n. L/ ]! u) }0 \+ ]
if (iedom){
' U2 T. [$ `# _4 E+ B0 t7 V- \4 t0 yif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
. P" ]' R8 R: G, N  ucross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
4 y# k! ~% `- ^+ xelse
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else if (document.layers){
& Y( S; C8 C- ^1 @( Y2 O9 `. nif (ns_marquee.left>(actualwidth*(-1)+8))
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ns_marquee.left=marqueewidth+82 {; n0 h& V: x( L
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}
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6 `, `3 p5 C: q- Q6 {, Jif (iedom||document.layers){! E" |4 c5 U5 V  ~( y9 G9 G
with (document){  X, o- S( a7 q* C( m" p
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')4 [5 w, r: p, r0 h+ U1 p; a7 q
if (iedom){
  F, B' V. {+ H- nwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')- [0 \7 B# j6 e" b. Q
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
$ _6 W+ ]4 R4 M' w# @3 Y+ ?write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')) @' Z9 u" m# X8 J% D6 x% h' e0 [3 f
write('</div>')6 Z+ U) F$ e; T' A
}
! Y, w  y' R3 O0 g; ?; d! ^else if (document.layers){* h$ j% s; q. i
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
: a* W6 I: a& ?" ~' Kwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')( A' b# Q' b2 k2 d" _2 C
write('</ilayer>')
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document.write('</td></table>')6 R5 h( G, x2 t, T: c! x2 J0 t) B
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