网页之跑马灯文字特效

zw2004

//修改宽度8 \9 T7 X; P8 T  t- r
var marqueewidth=300
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var marqueeheight=25, M; r- M4 D9 G, M4 o" X
//速度(1-10)* I3 @8 `4 A7 y  }8 R
var marqueespeed=32 p2 {4 l' Q& X/ o2 w) _+ q
//背景颜色& _; F5 E3 X. @
var marqueebgcolor="#FFFFFF"1 C- v( b4 N+ D2 s  E
//是否能暂停 (0=no. 1=yes)?
4 G' L" J- K0 Kvar pauseit=1. D( Z  B4 L( W& d5 m$ q9 `
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//修改显示内容- A  r$ y, y7 a( B/ p  _
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
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/ b5 t% A7 q  v% \. s: T6 uvar iedom=document.all||document.getElementById
4 Y8 l) B; d( \9 Bif (iedom)* k, g8 g5 z/ Y4 b7 s
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')0 E* L. F  O  a
var actualwidth=''
2 p' y5 u+ ]+ p. j# O  Hvar cross_marquee, ns_marquee# c$ J: M* y. G! P

- M  U- `4 `6 r- I1 a7 }function populate(){. T: q; W4 l8 ^# }2 \" \4 U7 e
if (iedom){
( Z' b* Z( \9 x7 r/ h# {cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee: ~0 I6 v: A6 Q; i. B: t# Z  D/ e
cross_marquee.style.left=marqueewidth+85 {6 k) s8 J! M
cross_marquee.innerHTML=marqueecontent
7 t6 s2 c% q2 {" C. Uactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){
" H3 S! \$ p( `8 l- i1 Gns_marquee=document.ns_marquee.document.ns_marquee2
$ i  O* T. L: ^1 O! B4 ]3 Tns_marquee.left=marqueewidth+8# y+ ~. Z4 m' b7 X& B1 h6 c3 a
ns_marquee.document.write(marqueecontent)+ `4 O% e" K8 k- P" k9 g9 Z1 }7 n
ns_marquee.document.close()
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lefttime=setInterval("scrollmarquee()",20)$ O- U7 Q% v0 b" R
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window.onload=populate
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function scrollmarquee(){. m( Z$ i" ]- C& M+ o5 f
if (iedom){
9 y* O% b3 Z2 fif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
  H% ^  {8 R0 t8 Y4 y4 O5 S- ecross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed3 o5 p8 O3 t% c
else
4 B, q6 I' F9 v! t  Vcross_marquee.style.left=marqueewidth+8
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else if (document.layers){4 j& U0 e! `6 i8 @
if (ns_marquee.left>(actualwidth*(-1)+8))' I2 D& K! ^1 b
ns_marquee.left-=copyspeed
7 D* O% g9 z, s$ s4 Ielse
) t5 I, C: |0 K& b  ^ns_marquee.left=marqueewidth+8
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if (iedom||document.layers){+ d. V" Q$ j7 A+ u( W& p% s' ?
with (document){, k& ^$ F, c8 E9 J5 O* |+ D/ r
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
1 d* @6 b$ T0 Lif (iedom){
( L; F+ Y: X6 D- V) [write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
) w4 d) X0 z1 }  m1 `write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">'): e" ]' o. f; B" ?1 Y4 J- K) c, k
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')& [" K( }0 w& q9 w0 _! [( O. l
write('</div>')
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else if (document.layers){! F& c  J2 \$ d. F* h/ F: {8 o
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')8 s4 {: I: U1 f( Q; ~) K( G. V
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
. N/ ]0 M* A% k, ]7 f" H; I1 zwrite('</ilayer>')
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( A; ~* M2 r2 m6 p+ n# s0 e6 ^document.write('</td></table>'), t0 _1 a! e4 {' p0 h
}
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