网页之跑马灯文字特效

zw2004

//修改宽度+ [8 P5 s4 X0 m9 I6 k, c2 m" n
var marqueewidth=300
3 v4 h: [0 a7 L  R3 \* J: p1 J3 B//高度
' |3 p, }9 P5 p# T) v  T# f' xvar marqueeheight=25" B; |: c0 k# v' k" M
//速度(1-10)
, a; P1 |1 i0 E/ ~6 a; a0 |var marqueespeed=3+ w( n# b6 W, l% }6 o
//背景颜色
: S4 l& C# _* L, ]' w$ zvar marqueebgcolor="#FFFFFF"2 y- {1 t, A6 y' J% O) E1 _# K  C+ k
//是否能暂停 (0=no. 1=yes)?/ f" M5 M" F9 ]( u  B- u
var pauseit=1- |% G+ H; e. ~; w- Q' k

( n- I9 }5 q- J5 A/ _//修改显示内容
; i! F8 S1 g2 P" Y2 cvar 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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: e/ D6 u9 h( G+ m////下面不需改变////////////
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1 g$ x+ g. U7 F: N" Xvar copyspeed=marqueespeed
& i# N7 K: M& p9 J, n1 s. Fvar pausespeed=(pauseit==0)? copyspeed: 0
# j9 f+ f0 @2 H: t! Tvar iedom=document.all||document.getElementById
9 X% b9 y* w5 g7 i  Rif (iedom)
  O* W/ W( @! u8 c' O1 p4 hdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
* @* f7 C; E. _! B9 Evar actualwidth=''
, Z  d! v$ u$ {9 Pvar cross_marquee, ns_marquee
1 w7 b- w9 U  T: {
7 V  c# W1 {) i$ D0 G3 _' jfunction populate(){
! ?4 C) C7 V0 |1 eif (iedom){
( V. W! _/ R7 Q/ Y9 l5 u# Bcross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee+ L1 k# u# |( ~( ^+ U- {: {! L
cross_marquee.style.left=marqueewidth+8
% \3 B4 A' N" R. W! _cross_marquee.innerHTML=marqueecontent& d8 K; G' g5 S1 G# E9 J7 V$ Q" i9 \
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
+ L- i8 q8 @* Q- y3 j5 [, ]4 P0 W}- y: w- |  _! E
else if (document.layers){( w- g2 `) R" f* J* u1 U% r7 I3 H, o, m
ns_marquee=document.ns_marquee.document.ns_marquee2
4 H8 C5 N' x) V8 L0 d; e- b$ Hns_marquee.left=marqueewidth+8
* M" n6 E2 L7 B. wns_marquee.document.write(marqueecontent)
( x' u9 q* |+ b1 J3 R9 ?( F5 X9 cns_marquee.document.close()2 \2 ~; }) i3 S- \
actualwidth=ns_marquee.document.width
+ j8 I+ B% w1 B# c7 H}
* A9 I3 N: E. llefttime=setInterval("scrollmarquee()",20)
- z2 H5 v6 L* L3 \, ^}
- I* P( I/ Q! S4 {window.onload=populate
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function scrollmarquee(){1 S3 h# {  }8 C0 e. O
if (iedom){1 o1 B: J; r0 e; ?! c$ B4 R; v
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
( ~; {* d0 i% }8 dcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
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# I- O) m% o; f3 _) Ocross_marquee.style.left=marqueewidth+8) U6 E' u( W" ]

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else if (document.layers){
  G' Q6 h6 `0 \3 q5 S! b" L$ ^: Rif (ns_marquee.left>(actualwidth*(-1)+8))
7 p2 P( `) x7 c0 j* [, W2 Qns_marquee.left-=copyspeed
5 S; L& [. z+ p9 nelse
& }3 R' y, r  v7 cns_marquee.left=marqueewidth+87 Z2 |$ y9 ?3 k. c) K1 _4 O& n
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}
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7 }2 v! j0 ?% X1 Z% lif (iedom||document.layers){
  q" b! h* m. W1 T& f4 k3 @0 nwith (document){5 q9 B# e! D" P4 i- ?5 p% M) F
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')- q: K# \( p( j" g; {
if (iedom){
3 ^' E% E# o; Q- f$ _" d7 V: Pwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
! Z' |$ u( i' ]7 n, p: T& `: @. jwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
+ u) m0 L8 b5 G; y+ w3 S) ywrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
) s; S0 O4 t% i  M. Kwrite('</div>')& }1 I* S" m( D
}
; s/ c8 H8 S  i# f$ T" ~else if (document.layers){
8 V: p8 h! A" i+ N8 Hwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
' o! {' h- @6 i. N5 q. f& P2 n" xwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
4 \# Q7 Z5 y% [! E5 @, `write('</ilayer>')6 v+ K3 h4 ?3 x: I! Q
}
) x; ^3 O% T" z  G4 k% Xdocument.write('</td></table>')
7 j2 ?  G1 E7 v. W}
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) ]5 C( U1 r( M" N6 d+ H7 ]</script>