网页之跑马灯文字特效

zw2004

//修改宽度: p3 h' ^, Q8 q# e- W- a; B
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//高度) K' Q! g8 c  {  i7 S1 K
var marqueeheight=25% J. p- p' Q2 Y. p0 M2 d
//速度(1-10)
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, W" O/ k' }/ C//背景颜色5 S4 S! g7 t+ z4 N5 J; E
var marqueebgcolor="#FFFFFF", [7 P* X! l# }! N8 I
//是否能暂停 (0=no. 1=yes)?* \# z+ I7 ^7 Y" @- [  x
var pauseit=18 K* ~- V* |* l  A6 c- b" ?

: s1 U3 [! T0 y) d9 u//修改显示内容; T9 h' q4 F: Q3 K! G& L
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>'3 K- t8 }! j* X1 m% ?

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////下面不需改变////////////; I' l  O# M- }$ W3 G
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var copyspeed=marqueespeed
7 Z, a$ t" ]0 ^var pausespeed=(pauseit==0)? copyspeed: 0) f8 g, O1 G" M9 v! A2 u, D
var iedom=document.all||document.getElementById
' I( ~& C8 w* C/ ]if (iedom): ^$ q! n. a: h0 q8 [
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>'); s7 S6 h- h- U: H  F" H
var actualwidth=''7 |1 ?) s0 `3 [
var cross_marquee, ns_marquee, D! n$ b. M6 `1 }9 n

6 L" O, q) j/ _* I9 Tfunction populate(){
% m2 O, k3 n& xif (iedom){6 _. v3 ^3 p) M( P
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee9 ~: y9 I* G) k. o1 G4 ~2 R
cross_marquee.style.left=marqueewidth+8
( S, Q/ R6 u% ]0 p: I" M" xcross_marquee.innerHTML=marqueecontent% q% C& g$ g3 t$ y/ l
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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, _$ R& V5 d8 c4 Pelse if (document.layers){
! Q/ I) H6 }# v' _4 yns_marquee=document.ns_marquee.document.ns_marquee2
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ns_marquee.document.write(marqueecontent)$ ^( x! ]* l2 L
ns_marquee.document.close()
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lefttime=setInterval("scrollmarquee()",20)( o! |) V& ~+ d& g/ h; q
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window.onload=populate
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function scrollmarquee(){3 o, _5 }' }8 A1 n. M9 t5 J# i
if (iedom){; z. l/ ^+ s4 z- ?! F* S
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
& |5 _0 }3 X4 ?cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed0 ^# u( H, G8 q4 J( P, f
else
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else if (document.layers){
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ns_marquee.left-=copyspeed/ @0 b" r; t: n' F
else
" A3 q9 |) N, @ns_marquee.left=marqueewidth+8% Z0 z3 z2 r  b9 ?
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with (document){5 ~" ?8 C: w# ~
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')8 \2 Y2 t% T8 M! J7 v
if (iedom){0 P) D) p2 O# C; o% f  B
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write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')4 B2 s" J9 ~* h! ~, o" E+ N
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
- F  @: `; ?' ?+ nwrite('</div>')
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else if (document.layers){1 c3 I5 I0 g7 Q) _- n' I1 ^
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')5 L3 ]1 \5 H) o3 D6 {' L
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% T( Z# J* ^, j+ a: vwrite('</ilayer>')
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document.write('</td></table>')( {$ @* }" B6 [) j
}; k# {+ r, \; H$ U* k$ B
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