网页之跑马灯文字特效

zw2004

//修改宽度
8 t! i! f+ W' _0 Q2 y) A2 ~var marqueewidth=300- ^! H( b# S& t5 f7 ~$ S
//高度
5 [, x. o- p& n. V  rvar marqueeheight=25
; M; O& y: C) C& b5 o+ I( t2 p//速度(1-10)% `9 J# j! p8 t3 U
var marqueespeed=3' a4 d6 Y. E* ?( {: H+ o3 w
//背景颜色
6 T8 P- i: L1 O; a0 ~6 Mvar marqueebgcolor="#FFFFFF"( v- m, G! Q7 Y3 |( \
//是否能暂停 (0=no. 1=yes)?: B) ]- @/ {% K
var pauseit=1
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//修改显示内容$ S4 b) V  X6 P4 B9 l0 M
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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; h, G8 e7 S+ ?4 A( f, f  _, d: @" _var copyspeed=marqueespeed
+ J$ {4 O  o! V' s/ c2 C+ hvar pausespeed=(pauseit==0)? copyspeed: 0! L2 u6 P2 {2 }. r1 J; d6 M
var iedom=document.all||document.getElementById
" G& S% p& S# D8 ~4 `- K+ |- rif (iedom)
. z! V+ E- T; ]3 Y/ Q. I: ]document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
# E) t* {0 E% Z7 J3 svar actualwidth=''; a9 a8 b" N, ]! e- D9 I$ K; e
var cross_marquee, ns_marquee
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function populate(){
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cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
# _7 j; y. ]# Z- u- g$ |cross_marquee.style.left=marqueewidth+8
1 z4 t& q- V! R8 Kcross_marquee.innerHTML=marqueecontent
! d" R  f) ], g) S; t" v6 Sactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth- B! M, `/ l* ?
}2 l- D6 g5 }" ?( t
else if (document.layers){6 V. T0 g* g: N  [3 z; B& x
ns_marquee=document.ns_marquee.document.ns_marquee2
7 F& e- l3 K% S: Y( sns_marquee.left=marqueewidth+83 O) v( g4 @+ J! s
ns_marquee.document.write(marqueecontent)
/ I% H$ M5 m5 s2 Tns_marquee.document.close()1 x: ]! K, {5 d. e: h* d& b
actualwidth=ns_marquee.document.width
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lefttime=setInterval("scrollmarquee()",20)
# d& ]5 @  X) c% a. b- L8 w}+ h8 ~. \  a% J7 h# O
window.onload=populate% Y. y" X9 j& W8 }, J7 ~
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function scrollmarquee(){
" b% [7 N! I- w! _' H' j2 z) Wif (iedom){
# O. |: v: k2 P1 F$ Pif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
9 r# n1 b2 h4 O9 c/ n% @cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed$ u3 t2 k' m& r5 o" _' i$ K4 s
else
  r+ k1 y+ g* T! B1 D0 O3 gcross_marquee.style.left=marqueewidth+8. g' m# k4 u& r% d, B

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7 y; Q/ a6 D# b. u" l2 \, n+ J  Delse if (document.layers){1 X) z4 r- A' j
if (ns_marquee.left>(actualwidth*(-1)+8))
! P; |! `; T# P5 Sns_marquee.left-=copyspeed
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ns_marquee.left=marqueewidth+8- ]/ i7 I! r+ A/ ^: N% y# a4 M
}
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if (iedom||document.layers){5 D, X* q7 @$ p& P/ v* L
with (document){
& g7 S* l* D0 J( o8 d/ \" Zdocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
1 T: |7 w  G3 ~0 uif (iedom){
) Z: U8 j, G5 c! W) A* n# vwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')* o- H3 R4 U& C- f' t
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')/ m4 @; ^# ]# t7 r
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
$ Y$ g' s  j" {0 R  gwrite('</div>')) ^- _+ a% j6 j+ P; R
}$ M" I% _6 _/ C
else if (document.layers){5 U4 k: x- j7 h% D7 w- B) l
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')7 T8 b- `, }( e3 S, t
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')$ ^6 _/ _+ I! I
write('</ilayer>')* L& H' f) |0 u& C
}" M( j& A3 i! f* j5 |
document.write('</td></table>')
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$ D1 o: g0 B2 P9 x( Y</script>