网页之跑马灯文字特效

zw2004

//修改宽度4 C- R  ^& j! C, l9 x
var marqueewidth=300  k& k; d6 F3 N" e9 L
//高度6 i7 H) l9 E0 M
var marqueeheight=25
/ Q9 N5 Z7 W6 ?9 R* g7 E2 x//速度(1-10)
  _0 m* G7 A. y6 Dvar marqueespeed=3! X9 {  H4 x( U8 f* D5 |: [
//背景颜色
& X% q* ~) R( z  ?4 Y! p& Cvar marqueebgcolor="#FFFFFF"
; S! M% ^& A( ?% Q! U//是否能暂停 (0=no. 1=yes)?
2 G. K/ J: j9 Nvar pauseit=1* H9 d% w+ ^1 q5 ~6 {) j
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//修改显示内容
8 E! ^8 H/ c2 O5 e8 mvar 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////////////) [8 A% Z7 B: i6 [- y

; H& `5 @" b& q% m; @var copyspeed=marqueespeed
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& q" J6 R4 |; M' Avar iedom=document.all||document.getElementById
+ w  ~# `& n. Kif (iedom)
# r# V. ~' D: y( }- ?, bdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>'): J( x) d: K2 h& F$ k
var actualwidth='', q* S& j: p# Y2 I* q
var cross_marquee, ns_marquee
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( B& M! l& a6 o- c9 q* `0 L; `7 C5 nfunction populate(){# t1 {& ~; x. @& l& R4 {9 S$ }
if (iedom){
; [, W) S0 P# I, @5 \6 H8 _0 M) @  }cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
7 l9 ~9 v. {- p* ^1 m4 k  Icross_marquee.style.left=marqueewidth+8, {+ A) M: R% p4 N  D
cross_marquee.innerHTML=marqueecontent. f% L2 A5 b8 C, n, |8 K9 }  O9 E+ n
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth* q( w+ v; s9 x7 [6 F" P. X: _- n
}
% Y$ h- c" j. O! }: p& _else if (document.layers){
6 l1 Q/ d- b5 I7 }4 r: Sns_marquee=document.ns_marquee.document.ns_marquee2
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ns_marquee.document.write(marqueecontent)
  U5 u: D5 a3 A- u" qns_marquee.document.close()
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+ R1 ?, u! w" V% J( Qlefttime=setInterval("scrollmarquee()",20)
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window.onload=populate
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* `2 C3 c( Y: D8 }$ b: k4 j" Z# }/ Kfunction scrollmarquee(){: y6 q! o* c- V$ H+ x, U2 ]3 q% A. V- E
if (iedom){
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cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed, e4 |; R* J8 C
else
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}
+ X2 z' u$ D. m8 v9 Relse if (document.layers){
+ `7 D4 y% q3 h. Y" T# P% l. K7 Hif (ns_marquee.left>(actualwidth*(-1)+8))/ _( F( t; q/ C) N$ X2 V2 e
ns_marquee.left-=copyspeed4 f  b& A9 e( L! G; [! n2 O5 o
else% q$ ?7 V8 O0 |4 C2 n0 n
ns_marquee.left=marqueewidth+8
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}
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with (document){4 g8 }. e2 O, C9 N
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
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' w+ O& p: {9 q: L+ z& ewrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')1 W0 ~0 M! N# B! ]4 c
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
" }. ~$ U& @& y8 h. F; L# Ywrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>'): p' F) O4 h. n6 l7 `
write('</div>')2 F4 F  }2 x& D: m3 ^" F
}
% m; V6 Q: s8 Nelse if (document.layers){' H* s( a4 N  t% @# C9 q2 f" ?4 j
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
! L0 ]5 D/ ?& n3 M8 J6 pwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
6 p4 H  I3 S$ L" t1 l2 Rwrite('</ilayer>'); e% \+ a8 z3 `
}
# S( |/ H. X( v! ?& b. s  Ndocument.write('</td></table>')7 R& k$ K( {4 |+ E! Q8 [
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