网页之跑马灯文字特效

zw2004

//修改宽度! m. L9 T9 }$ d7 F8 f
var marqueewidth=300
5 E) w$ N: B- e- D/ Q9 L//高度0 K$ F* s: w' F5 n# x
var marqueeheight=253 v- C  x# R5 V- T
//速度(1-10)
. T. [8 p( L$ _' ]var marqueespeed=3
& H0 G! o2 P1 h+ Q' a6 g- }% x//背景颜色
! r* D/ z. P9 e7 f4 q# _4 k. evar marqueebgcolor="#FFFFFF"
* C9 b, o2 M8 c- i: I' n. q//是否能暂停 (0=no. 1=yes)?
& _/ v* n- A- ~. e7 I2 T, ivar pauseit=1& l. k" n% B* _  T" h" v
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//修改显示内容; H- M* X7 N! k5 C/ |) G' Z
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>'5 x- ]) r' P$ @/ J6 Q- x

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////下面不需改变////////////; h+ n4 s7 u( s2 i' \" \
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var copyspeed=marqueespeed7 Q! j0 ~5 I+ X- V+ V2 O) y) p. N
var pausespeed=(pauseit==0)? copyspeed: 0! A8 l4 u; X# h9 g
var iedom=document.all||document.getElementById4 V! e9 O. O2 L) @2 t( ^) _4 V$ N
if (iedom)- A6 b. U# S3 D; P# N5 d& i: a
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
- T  T- Y, o; a$ u8 Vvar actualwidth=''
- v+ W3 }4 a+ ?var cross_marquee, ns_marquee9 H( Q5 G& k$ B8 b
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function populate(){8 C1 v6 W4 \1 u" I
if (iedom){
5 r! Z* a; m& d! `8 J4 jcross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee8 Q0 U+ E; {4 \
cross_marquee.style.left=marqueewidth+8
( I3 h/ a& X3 `; pcross_marquee.innerHTML=marqueecontent  u8 |; q6 |! V6 R9 v
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth7 n& l# o( \' P: W
}
- e% p0 R% V( ~, y! p% jelse if (document.layers){& h% P0 D. ?: L1 }& K* G) |2 z
ns_marquee=document.ns_marquee.document.ns_marquee2
  f' E+ }2 u$ b9 N, kns_marquee.left=marqueewidth+8
9 W( K- o$ N- ?) s( f4 ^ns_marquee.document.write(marqueecontent)& C# D0 [: Y; D" Y
ns_marquee.document.close()0 b: `+ Y! l" Y. Z. s
actualwidth=ns_marquee.document.width
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lefttime=setInterval("scrollmarquee()",20)
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window.onload=populate2 ^7 r, f' n+ ]

% t$ |5 }  y* G7 c4 Qfunction scrollmarquee(){; N8 t+ @: \! g7 s3 _2 E- O8 h0 [
if (iedom){
; H; c! n- F( O5 o/ _7 v0 S7 aif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
! J/ ]6 @8 r' K8 ^5 ~  A* ~6 ?: r2 C5 kcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
: A# l' O% O2 ?+ oelse
9 U( E( Y& }4 w( @; U; M% ucross_marquee.style.left=marqueewidth+8
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else if (document.layers){( q; S6 Q0 K  }* j& ^+ D1 q
if (ns_marquee.left>(actualwidth*(-1)+8))+ L2 y5 m0 I+ q$ F3 [+ I
ns_marquee.left-=copyspeed1 d" O6 E0 j- r6 B. i& L2 E
else- F$ B# @: X& m' o
ns_marquee.left=marqueewidth+8# D0 @% e1 ^+ z* Q' d
}9 {( q$ r  g5 q
}
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if (iedom||document.layers){
2 V! P+ c% w5 r! I6 \with (document){4 o2 }% [$ ?! Y& _1 u8 r, z
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')* M' T0 f7 d7 `0 H7 e) |1 T
if (iedom){
/ K2 w0 q* ^5 E+ J& C  Iwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
( y, g( d1 S" b' h" d9 Y3 o! p4 g0 W0 `- Nwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">'): G- B7 X4 W  H9 `% _  L
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
. ]: o! I3 u4 F8 u) A0 ewrite('</div>')
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else if (document.layers){3 {' ]) p* w- r! h
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
& h1 c9 }0 b' w1 wwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')% F% v& ~, e; L! G! ~+ S
write('</ilayer>')$ D) t2 t4 F" m
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document.write('</td></table>')$ U3 f) |) ]8 X# Y
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}
: @' b. P/ a8 g9 m1 U* e</script>