网页之跑马灯文字特效

zw2004

//修改宽度
* u0 F' d' q. U& P" G/ Evar marqueewidth=300
; t+ J& x) {/ i//高度
( F) M7 ^& V, P. x" a3 M8 Tvar marqueeheight=25
" F% d9 B) Q6 ~//速度(1-10)
0 E4 z) }( r# _5 Evar marqueespeed=3
- U% L  z8 w9 l6 m7 ~; M" m' W0 @//背景颜色
0 V  ?. ]/ j4 j% Gvar marqueebgcolor="#FFFFFF"5 K# M5 j6 E$ g3 t
//是否能暂停 (0=no. 1=yes)?
* u2 G& C( M& d% {! @! nvar pauseit=1) w% S1 [+ L) Q7 w! x7 G7 y5 V

) f2 e6 I) A3 ]' A- K# p//修改显示内容
3 C0 O+ E7 Z3 E% u. \3 t8 A! yvar 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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: W  Y: M# o$ v  {////下面不需改变////////////: X5 k, a  X1 n$ f' F
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var copyspeed=marqueespeed
# u  G8 ^  f" ^; A# s$ {# Fvar pausespeed=(pauseit==0)? copyspeed: 0( L- o# |  I+ P0 a0 y% p  E; C' q
var iedom=document.all||document.getElementById2 m: b1 t9 @- |& B2 \
if (iedom)3 W( P  ^2 r7 P0 I" }$ v2 }
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')2 L, p' l- `9 m+ S
var actualwidth=''
$ U: I4 f" a( C! L7 nvar cross_marquee, ns_marquee5 C. I) S# [7 b& N' A2 g* r, |
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function populate(){
9 x. |- R3 l, \: d4 s0 ~1 @% Iif (iedom){2 u, g! W" D) n- W7 u6 I0 j* V
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee+ G! L" J6 s. O3 C2 B
cross_marquee.style.left=marqueewidth+8
3 u8 {% y$ P9 }" l# ^! Qcross_marquee.innerHTML=marqueecontent
' ~3 b/ Q) _3 d4 y7 D8 @# kactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
- B+ C* l! z; G% V  X" h: m}
% i4 t- C+ E5 O* q. F8 g7 ^else if (document.layers){3 g1 a1 |, |7 H- f6 f! z/ ^
ns_marquee=document.ns_marquee.document.ns_marquee20 C3 X+ O+ c2 ]: z* i7 K/ h- I
ns_marquee.left=marqueewidth+8; b  k% \8 i8 D5 \% v/ K, q4 h9 c
ns_marquee.document.write(marqueecontent)
0 K1 B& K: N( s! E  Q9 A! J* Rns_marquee.document.close()
; c- u' ?& o: p  U  J2 K0 sactualwidth=ns_marquee.document.width- }8 }3 A" x0 c! y+ ^  a" N& X3 Z: V
}
4 g7 K) I; p/ a. ~5 y6 P4 Y& q# rlefttime=setInterval("scrollmarquee()",20)
$ Z" B/ L. \& ]6 l- q}
  V2 k/ S: {4 r4 F) x+ i0 F, i& Zwindow.onload=populate) O8 Z9 ]( n+ J& p: H) @) ]" o( D9 a

( `2 p5 w, L6 o! zfunction scrollmarquee(){& d( n/ {4 T( L1 c9 R3 z
if (iedom){
! t$ W1 e5 _6 wif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))9 j2 n# J6 t  K  B1 E# b
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed4 h, h9 F) ]8 A7 J3 D0 Q1 l0 T( D
else/ O+ d) E  _" Y5 ~! B
cross_marquee.style.left=marqueewidth+8
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else if (document.layers){
" _+ d% U3 h1 C; r7 @if (ns_marquee.left>(actualwidth*(-1)+8))
3 y6 p; J- u- O7 uns_marquee.left-=copyspeed
! r" @& B; V1 Q( e# melse
/ s1 u( D8 ?( P' ens_marquee.left=marqueewidth+8+ t# y! C2 H. u4 V2 r
}
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if (iedom||document.layers){1 u3 ]$ G3 ~! B& A( z* z: E, [
with (document){% X8 `$ `5 F; C4 U0 z
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')* b' I& c0 _! V9 i2 }0 T
if (iedom){% T" ~  Q2 P2 d. n- _6 i
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
8 B9 u* @" b" K6 f$ owrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
& Z  w7 a$ V0 bwrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
% @& t- e7 y( p7 K* N% kwrite('</div>')* L( A' b" q! c: }1 E/ P
}
+ x- Z9 F, U) [9 ?5 y1 l% jelse if (document.layers){
9 u0 O( u  K9 r+ ^" I4 O+ Vwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
. d! m$ T/ u/ W) N; G; twrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')) d+ U3 z" p+ e) N
write('</ilayer>')8 l9 d, s* F% D. B
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document.write('</td></table>')
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}
; ]: n! A% J' s- x9 C% K</script>