网页之跑马灯文字特效

zw2004

//修改宽度+ I* D! a# E" G9 M" U
var marqueewidth=3007 z5 s" }4 n+ `7 R+ j: ?1 L
//高度
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2 O  G  ]- f' t/ A5 e//速度(1-10)* I. r9 _2 V7 s  P; K6 C  E9 G
var marqueespeed=3. q4 _0 ]6 o! @  C
//背景颜色
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//是否能暂停 (0=no. 1=yes)?
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//修改显示内容) k6 |8 h4 {: C1 G) |% A
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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! T1 T) `% m- z" e( H/ E////下面不需改变////////////& f/ a* M/ Y5 T
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var copyspeed=marqueespeed
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var iedom=document.all||document.getElementById
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document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')" k) ~1 L  s! ^; a; [9 s' b
var actualwidth=''
+ A9 j+ U3 M# c1 x  `- p1 wvar cross_marquee, ns_marquee9 Z. I" B7 T; L& A$ b" Z
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function populate(){5 ?, a0 O' }9 P5 W
if (iedom){5 `$ R) w; o5 X# N7 C2 r; d
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee* v' A9 }( l1 s& C" l0 T
cross_marquee.style.left=marqueewidth+8
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actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){6 M. M* r2 z8 j+ h" ~
ns_marquee=document.ns_marquee.document.ns_marquee22 N1 N7 @9 Q' s  q2 e
ns_marquee.left=marqueewidth+8
! L% L4 J: U+ H  Cns_marquee.document.write(marqueecontent)
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actualwidth=ns_marquee.document.width
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lefttime=setInterval("scrollmarquee()",20)
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0 t9 b+ h6 P6 O! C2 ?window.onload=populate
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function scrollmarquee(){
! E5 k5 A* p" v( g0 \, g. L( M3 s$ Cif (iedom){
# S/ v% i! L' yif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))9 S: J9 H9 E2 |+ c0 B* L# b& J
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
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) c( n% Z% B8 m$ Icross_marquee.style.left=marqueewidth+8# ]: U7 x1 ^. i6 d' G

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; Y, ~. c$ F' l* N8 jelse if (document.layers){
: F$ `# I6 @1 U% M- J/ Fif (ns_marquee.left>(actualwidth*(-1)+8))6 s& F% ^+ G1 a  I+ m
ns_marquee.left-=copyspeed
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' o) d9 J6 v: K  G2 R1 Bns_marquee.left=marqueewidth+81 u' M% b& \4 C4 S! E
}
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if (iedom||document.layers){
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document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')) X+ k; a2 @& z0 G4 y. e" }  [
if (iedom){
4 a) @/ ^: P* T7 y+ Zwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
$ g) s4 i& u& A, H5 j* hwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">'): u1 ]+ M% ]7 \1 n2 p
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')' q, i: ]! E+ W" p! g
write('</div>')
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: M& w( s" I8 r) `$ N5 y) jelse if (document.layers){
" \) X9 ?2 U4 b/ kwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')' c6 X: F! E+ c
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')# e% c4 E7 P! w* z
write('</ilayer>')' y+ R* W/ H3 K) D# Y
}
8 }' W$ `8 h3 W: R& ?  z, `document.write('</td></table>')% f" N9 U9 I% d3 Z& }* w- q
}
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0 Z# o) B6 D; Z; \3 D3 s</script>