网页之跑马灯文字特效

zw2004

//修改宽度
5 G' d& f0 G: m1 H9 V0 h- bvar marqueewidth=300
0 \8 n) a# t& ^//高度
: T! q: n) ^/ @2 uvar marqueeheight=254 e1 d5 f/ K9 X8 [
//速度(1-10)
- G- k: B% l& r% `& B6 i, M& D( Wvar marqueespeed=3
( s5 u, M- G5 z3 k0 E6 p4 j# \' [//背景颜色5 F, x0 I7 ]1 ]2 q1 q
var marqueebgcolor="#FFFFFF"
" j& J% Y/ F9 y7 |//是否能暂停 (0=no. 1=yes)?6 N. J" D, \; {  o2 I" I
var pauseit=11 N2 I; x( P- N, w% e
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//修改显示内容
7 `4 s1 [- S1 |& z3 Q% s% ^/ lvar 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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% n6 X5 C) X8 L( w  S/ q+ g! o5 h////下面不需改变////////////
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var copyspeed=marqueespeed: M2 {4 @* c. M3 W/ N* \" N
var pausespeed=(pauseit==0)? copyspeed: 0
+ J; N' q. j: }1 z+ r/ vvar iedom=document.all||document.getElementById+ x/ @' O6 h* v
if (iedom)
3 |+ B7 z+ |+ ~0 g; f. I9 X0 xdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
7 S3 e. G( x/ V, qvar actualwidth=''
( C# R& I# N- [var cross_marquee, ns_marquee
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function populate(){
* Q1 L, C+ C5 a' V$ \if (iedom){! Q9 @' n6 }/ f8 v% D
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
3 a7 _9 G$ U, R7 ucross_marquee.style.left=marqueewidth+8+ d; b0 q, A' T  F) z/ A9 k$ |0 e
cross_marquee.innerHTML=marqueecontent( K# |) j/ S& D6 v$ B
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth! r3 D) Q8 \; b% i# E7 g4 L  R
}8 _! L5 {4 w0 z9 H/ c! [$ `: x* R
else if (document.layers){
* P3 y: T4 @! p6 hns_marquee=document.ns_marquee.document.ns_marquee2& [# [) v7 _1 x: B* L# f% o
ns_marquee.left=marqueewidth+8
; I! t8 _! z  G5 Mns_marquee.document.write(marqueecontent)
% I1 s9 y& k; S+ F9 a% D4 Zns_marquee.document.close()
; U+ V' A7 b- x' ]/ I4 f) dactualwidth=ns_marquee.document.width" c8 u0 Q& R+ Q# i
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lefttime=setInterval("scrollmarquee()",20)
2 Z+ Z' ^! Z8 H6 P/ @" b}
/ z' i( r/ _; E2 }window.onload=populate) q* S- W  _6 q. Y8 c

' _4 I6 Q3 m* C, O. qfunction scrollmarquee(){
5 B) @$ ]& S# h4 |if (iedom){, N, V3 j( D7 b) L4 ?
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
- _& m( o% L0 r  g" y6 Zcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
& i5 _1 u9 a0 K8 Z9 gelse7 G& G! t, B1 b3 R1 A6 l  O3 H# R
cross_marquee.style.left=marqueewidth+82 ?. H3 d. _# E  b" l. I
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else if (document.layers){' T4 `9 v" d) d' W/ C- R
if (ns_marquee.left>(actualwidth*(-1)+8))
* i. _. C) Y+ y; N1 zns_marquee.left-=copyspeed
4 _( j/ C* r. L8 d- X/ m( L8 aelse! i2 b1 w! V. X9 C1 i8 P3 P$ \1 @
ns_marquee.left=marqueewidth+8
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}
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9 ]/ b  s* }' E8 ?7 w" pif (iedom||document.layers){; W' c) r9 w% f4 R2 k
with (document){: c- H. i; g0 ~  m' M! E  d2 T* m
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')  B" F3 u, n( t* ?- c! w
if (iedom){. j- l5 ~: ^) L
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">'): Q% t! u* p" F- k: I% A
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')  ]! y! Z* M- J1 I3 e
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
# M. Q9 v0 T0 Q3 D. K  uwrite('</div>')
: ~. J" h' `" y/ U/ T& p- L2 o& }}
1 ]" K( K* u  Y5 a( }. pelse if (document.layers){# V# e! @0 c9 z5 M7 n$ `# V; X
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
% O' K" e4 b9 ~write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')1 U3 n3 T- e( U. w/ i  c% @
write('</ilayer>')
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1 E. F# ?; X1 h6 t4 N5 `* A* Ndocument.write('</td></table>')
+ b: y! I4 G3 M# e" ~}
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4 [, u2 ~9 P- V% r( u  l: C</script>