网页之跑马灯文字特效

zw2004

//修改宽度/ ~9 i3 i1 Y" {) t% y
var marqueewidth=300
+ i( e& N1 c6 z- \3 N//高度6 @* U  u& \3 N1 |; x& E: }, d
var marqueeheight=254 l- M( s+ `. b, e& y/ ^! x: q
//速度(1-10)
; Y. ^4 N% f6 |$ j! Q6 W6 i2 ?var marqueespeed=3: n5 u' r& n$ O" b0 V; V& ~
//背景颜色+ t4 E: L  o. v
var marqueebgcolor="#FFFFFF": Q' ]7 w+ I/ K3 d) v# f/ x
//是否能暂停 (0=no. 1=yes)?
8 _7 n* J8 e: x8 L$ `* D; mvar pauseit=1
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! g1 Y0 Y0 P3 D+ E. s//修改显示内容
9 A1 I8 H" Y% }+ P+ L. D+ Fvar 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>'$ w1 z% o2 U9 ~7 Y, q) e# O

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////下面不需改变////////////
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var copyspeed=marqueespeed
; X' \1 m5 b0 [* s9 ^3 @" v8 Avar pausespeed=(pauseit==0)? copyspeed: 0
9 H- W4 S" b2 b+ J0 ]var iedom=document.all||document.getElementById' ~# Z; b8 H$ z+ E& \: [0 l$ F
if (iedom)) C6 A, [9 l1 f; i4 D
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')7 x+ x: ~$ Z3 O  u% M4 s5 J. \
var actualwidth=''
$ X1 J- ~) ?/ Jvar cross_marquee, ns_marquee/ }, s% G- o, _' r- p) ~
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function populate(){2 X/ o! h; k4 e) k6 O% Q. W% u% {' }
if (iedom){" L% Q7 }- h9 D+ d( e/ _
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
2 D* v% H( q5 }1 n6 v  }cross_marquee.style.left=marqueewidth+8
- e. J( b' ^' B* Rcross_marquee.innerHTML=marqueecontent
# a! l2 R# p  E* f! Y' vactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){
7 w' f* h9 }& _: A% N8 |ns_marquee=document.ns_marquee.document.ns_marquee2+ f: j# T% }8 a' o9 q
ns_marquee.left=marqueewidth+88 o6 Z; l% z* z$ ?2 Y
ns_marquee.document.write(marqueecontent)
( |9 Z, M- k# N" b2 gns_marquee.document.close()4 y" z) y0 }% i- R' H
actualwidth=ns_marquee.document.width
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lefttime=setInterval("scrollmarquee()",20)+ \* n2 g0 m: g3 X
}
3 N- q. j4 D" Z) O- t' fwindow.onload=populate( X" n0 n3 g! T% P0 Y$ _
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function scrollmarquee(){
: m8 H0 M/ a$ tif (iedom){
( J; e+ j5 [0 W5 K& g" {2 U& ?if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))# Y  u( ?, w9 B/ Z
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed  q6 x, l: @4 j+ f$ @
else4 k& ~1 b6 Z2 a5 h
cross_marquee.style.left=marqueewidth+8
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else if (document.layers){
7 q- B9 f  W. V* sif (ns_marquee.left>(actualwidth*(-1)+8))
* N8 }' a" E, Kns_marquee.left-=copyspeed
9 F# ?% X- d) z( {8 i+ `- I: z+ ~& `else# i0 \% X( f4 g( Z0 @
ns_marquee.left=marqueewidth+8
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/ U( @8 l4 K1 i2 H* `5 d+ T}
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  H; F: K6 @8 u: f8 g% d4 oif (iedom||document.layers){) T9 H8 z4 B) _2 w# a# L' i
with (document){9 M( ?3 ?/ y2 ~' L. p, O
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
, F* P! @+ n) U, D. a, zif (iedom){. {2 A/ V5 v) F5 Y+ H9 S5 W7 f
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')9 O8 @: F! Y+ G& k( s
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')" p4 ~% V! Q0 ?
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
" y/ w7 [/ I8 j3 ]  u4 ~write('</div>')' ^9 }* V( z& j, R3 Q
}
( h+ d3 n, @& W8 t$ Melse if (document.layers){
: s. x4 A+ N( W: Qwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
- h3 S( u" e2 A3 J+ Lwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
& A' y0 @1 `- Q5 M. vwrite('</ilayer>')
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document.write('</td></table>')3 S5 P+ H0 J: E0 F
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</script>