网页之跑马灯文字特效

zw2004

//修改宽度* v1 H: D! J6 x1 ]
var marqueewidth=300: C: d; z% p5 i  D8 h; m' c9 y
//高度" U& ^; f7 J1 Y* P1 r6 p) ~
var marqueeheight=25
* C2 x/ D# E, L# L6 w! |//速度(1-10)5 R& j7 @0 P# P; R( R
var marqueespeed=3' h6 v% Y& ?$ f5 F
//背景颜色- ]' z+ T8 D5 @0 k$ V! f/ K* _3 E
var marqueebgcolor="#FFFFFF"
9 N) G! V$ G% |$ T2 t0 O//是否能暂停 (0=no. 1=yes)?3 f( G  ]3 F; F, Q
var pauseit=1
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//修改显示内容
" p) ~0 z" |$ l9 _* xvar 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>'6 q" l* g8 l0 y9 E& F2 _, G& B
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////下面不需改变////////////& Z1 u) L( o) V

1 w, ?0 E7 i( T; N8 ]var copyspeed=marqueespeed
3 Y' E! C# g& _/ d- \var pausespeed=(pauseit==0)? copyspeed: 0
0 f- n/ Z' n( v# avar 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>')
1 U- ~0 B: G* M; u5 N& ivar actualwidth=''+ i- X6 h$ k6 Z% [
var cross_marquee, ns_marquee
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function populate(){9 y# y1 t, Z9 T& N. R
if (iedom){+ Q5 r7 `6 S8 D
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
- f% ?0 B" @) l8 r5 M' Mcross_marquee.style.left=marqueewidth+8% i! \& j* M0 `+ O+ e5 H  _
cross_marquee.innerHTML=marqueecontent
$ x$ f6 G# g; @% B' y1 \: Gactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth- H& i  {: |0 o; [5 h) r
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else if (document.layers){* ^: D! D( f& D  ]
ns_marquee=document.ns_marquee.document.ns_marquee2
/ a6 i% O0 c/ F, Ans_marquee.left=marqueewidth+8, t  ^) c. Y- e1 \! b6 }
ns_marquee.document.write(marqueecontent)+ I% A) r8 h% ~( }0 n# w
ns_marquee.document.close()
! C$ E$ j6 M8 y7 P8 Q4 @9 Zactualwidth=ns_marquee.document.width9 K. J; _( O- e! I, L
}
- a7 Y9 i6 v* h) G* ?/ m1 a% `lefttime=setInterval("scrollmarquee()",20)& ~. B1 A4 P1 Y  I3 t
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window.onload=populate1 Y! F. f! G" F" }; y* _
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function scrollmarquee(){
( w& z% {, J3 t! D$ e. Jif (iedom){% E5 M* V5 E7 S& _5 h8 n1 j9 v7 K& u
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))9 }/ a# v8 @4 l4 `
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
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cross_marquee.style.left=marqueewidth+8$ j* R0 M  s  ^( |
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else if (document.layers){; m. D0 c, O* Y4 L3 }- f
if (ns_marquee.left>(actualwidth*(-1)+8))
& J  R  e9 [" k8 }; D, L; ^: h3 C/ Gns_marquee.left-=copyspeed4 b. w. u) i2 \6 D
else
4 a9 h4 R( M. y+ ^ns_marquee.left=marqueewidth+80 }) j! ]- R8 h& c2 i
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}
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if (iedom||document.layers){& c% d5 h" `1 I4 _; a6 P
with (document){
5 V9 v5 K- d+ ldocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')- Y$ C! i# R- V8 H" h' n* T
if (iedom){
6 u* A, N/ ~7 {& n% \+ l6 s* k& f9 ?write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')( `% w0 D% M' H- m( D: u% X
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')8 {& |8 t3 `4 L5 R7 N( ]
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')  p8 O( |( O  e
write('</div>')
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0 f; t% X# y1 w5 K; ^else if (document.layers){- w: K- R3 X0 O( t
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')" y7 j+ P& @' n3 @) U1 \
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')  @6 t; o4 h( q+ o5 A* G
write('</ilayer>')
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document.write('</td></table>')
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- ], G- n$ _: z& k  F9 A. h+ W</script>