网页之跑马灯文字特效

zw2004

//修改宽度
& x/ Y- o( m8 |: w' a% bvar marqueewidth=300" t8 S, Z% N( s
//高度
2 l! x" t; v* ~! M4 S; l4 Fvar marqueeheight=258 Q- u* j' a9 z0 H. y2 N* D
//速度(1-10)
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//背景颜色
4 i2 L! J" k3 @# U4 Jvar marqueebgcolor="#FFFFFF"
/ G  d+ o3 }8 t6 F! j& G" \, w//是否能暂停 (0=no. 1=yes)?
# j! z( X  K! c: \8 ^( ~var pauseit=1
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. @" C0 @) @3 a: {//修改显示内容. W* x$ A0 T6 x+ M5 J
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+ v! s2 E- g, A' {! a
var pausespeed=(pauseit==0)? copyspeed: 0& L9 C% w% T* t
var iedom=document.all||document.getElementById8 S5 F6 R7 y& A
if (iedom)
: y" n+ ]3 R) W/ k. r0 Wdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')3 S8 X: X8 A5 A6 }+ ~5 i1 i# J
var actualwidth=''6 Z4 z' f  Q, ?4 N3 t; {
var cross_marquee, ns_marquee
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function populate(){- k$ c$ s; |( k2 ^
if (iedom){
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' p  b0 A. G1 o1 K& e! ^cross_marquee.style.left=marqueewidth+8: L% K" o# i( A/ E/ Z
cross_marquee.innerHTML=marqueecontent, T) }, s+ R* Q$ t+ z. f, T
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth2 F, A; s0 q) Q& ]+ E3 F
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else if (document.layers){
9 Z. h$ ], z$ J3 Lns_marquee=document.ns_marquee.document.ns_marquee2
/ G; P, Y9 O9 N. N2 S6 H* V% hns_marquee.left=marqueewidth+8
1 `1 c; z& ]6 e6 `ns_marquee.document.write(marqueecontent)
. \1 D& q& R$ U- dns_marquee.document.close()' E, O* a  Q- y6 x  O% q- D
actualwidth=ns_marquee.document.width; E. ^; x" N7 N6 y
}
( C. L2 X: Z+ Z3 |$ @lefttime=setInterval("scrollmarquee()",20)# R1 d% j1 R  Y8 N* u
}
# g: I3 o& T, I( O! }window.onload=populate5 R# _5 \5 T" Q& z

4 u; |* f7 z! efunction scrollmarquee(){, k4 E( H9 T9 \& {
if (iedom){$ K: ?! F0 B% L, r
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))9 B( \, s# b5 _* X
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed/ ~4 i8 n% B) F$ M
else
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}
, E/ A& `. p" v( b* Jelse if (document.layers){/ Z$ U2 h4 d7 X. c
if (ns_marquee.left>(actualwidth*(-1)+8)); x4 T' p2 t) }2 a: @( C
ns_marquee.left-=copyspeed0 e' o$ m- U8 d& n/ ?4 X5 d4 B
else+ J9 J# d/ U( j( ]$ _& _
ns_marquee.left=marqueewidth+80 u4 B# Z2 c( _( f3 ~( E% {1 t
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if (iedom||document.layers){
  h! N% C) q& G0 U0 @, }with (document){# B. O) g$ d4 s8 v  z# ^
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
2 s' F% O$ L# p1 rif (iedom){
, q  i( ^) S  `0 g6 s9 v4 ]: O5 V$ fwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')3 e9 V: Z% i3 Y9 p
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
4 v* B: B: y; A1 e  {write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
" N1 q- Y$ |/ }! ]- twrite('</div>')3 D( G4 D  @6 w* G& N; @
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else if (document.layers){
0 G! {4 ?! S" fwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
2 [, r* Y2 |5 b7 bwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')" P9 K8 }9 Y$ A$ ^& Y
write('</ilayer>')
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) ?) c" |& \) V6 |- L+ u" fdocument.write('</td></table>')/ t% Z! [8 n1 |/ v/ n: J
}
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