网页之跑马灯文字特效

zw2004

//修改宽度4 F5 E0 x& i( i! H
var marqueewidth=300
; Q( |1 x  [2 L" \- M8 l6 d//高度( q4 ^7 C" Q' U# t; t
var marqueeheight=25
5 \* A3 [: ?0 L1 U: |, @# O//速度(1-10). r+ n; L) N/ p0 D
var marqueespeed=3( I6 ?: o, [) b5 @
//背景颜色9 f# H8 Q* b/ O6 [) d
var marqueebgcolor="#FFFFFF"
/ n' S- d' T! z7 a' w//是否能暂停 (0=no. 1=yes)?4 A  [8 ~, r: W% r- W$ _/ E! \
var pauseit=15 O6 K. s+ Y: J! i- z7 i9 M8 S6 O

- D+ M* _" H. X! a" I! j2 C5 s//修改显示内容- o8 X# W: y2 I' a# O$ t" z
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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+ A4 \  ?5 k& B; Kvar copyspeed=marqueespeed
; B, S7 g) Z: ?) Xvar pausespeed=(pauseit==0)? copyspeed: 0/ c' s$ h1 ^/ V$ m
var iedom=document.all||document.getElementById8 J; j- t* f0 y* @# _. v! F  W! v
if (iedom). g9 K4 `; u! k8 w* e1 c
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')7 ]8 V0 Q2 b$ a* }8 S' f( H/ s
var actualwidth=''
+ p- @5 K  I/ u5 j6 E/ j* g% Ovar cross_marquee, ns_marquee
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function populate(){
* k9 x0 a$ x) _8 V, Q3 Q+ ^0 H* [if (iedom){
+ \2 m* W; I9 ~. \cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
- M& @9 {- T. T: dcross_marquee.style.left=marqueewidth+8: E1 y1 a+ e8 @- B. q  H) ]: O, \
cross_marquee.innerHTML=marqueecontent) ?5 }3 v8 }! C0 ~
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
. F- p' a/ g8 G& `3 v: v}
1 ]  P8 J% T; y/ N+ c7 `7 Y. ?else if (document.layers){) u% j  C6 k  ?+ v& C$ x; f$ V
ns_marquee=document.ns_marquee.document.ns_marquee2
6 I8 O& D  l. Lns_marquee.left=marqueewidth+8
) `  F) ]5 h. J5 t7 Vns_marquee.document.write(marqueecontent)
7 e) @  L* b, W9 M* f" V0 V7 Ens_marquee.document.close()
8 s: t2 Z" l0 r6 g. {actualwidth=ns_marquee.document.width
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lefttime=setInterval("scrollmarquee()",20)
' ~0 F8 @* t0 R! u0 L}
8 l1 E. W+ I# ^0 dwindow.onload=populate4 P' I) i: l4 ?

# c9 ~, G- `7 lfunction scrollmarquee(){' ?+ b. O, J& ]  L
if (iedom){
- W% n8 n2 h3 x; z5 Hif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
1 W6 h" R, w8 {7 fcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed  m# X# t1 C* f4 S5 z1 U% O" M
else$ `( A- f( u8 }5 u: y* p1 x- y
cross_marquee.style.left=marqueewidth+87 }% S9 _5 N, S4 j

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else if (document.layers){
) _5 u7 I4 b9 t+ _4 H0 _if (ns_marquee.left>(actualwidth*(-1)+8))! M: l. e7 c& ~, C- F: k( q
ns_marquee.left-=copyspeed
* a+ [' `0 |; y  V- `else+ n9 J- O0 f4 T9 d1 @
ns_marquee.left=marqueewidth+8
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if (iedom||document.layers){' p3 X& l3 t5 h& T% G$ G: p
with (document){
# W- w( s8 l0 x6 V# \document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')( v* B. }  d5 |: v6 b4 m
if (iedom){* ]' i; k2 c2 b) Z4 z  G) B  h
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
& A" s9 T0 K1 owrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')* J" o1 ^/ m4 w* x
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
  T, o" Z( N3 ]! p1 rwrite('</div>')
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6 M5 r$ w5 v2 {! uelse if (document.layers){! ?# _* h7 ^6 T; x
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>'); J3 b* T* ~0 H1 |7 l8 f
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')9 o9 n/ l0 X( h, m/ q) W
write('</ilayer>')
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, G  M6 Q' o9 s3 y: Zdocument.write('</td></table>')! P: e7 i3 R9 P- z- ^  A
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}
6 Z( c& c( |7 u& w6 I0 V8 V. r</script>