网页之跑马灯文字特效

zw2004

//修改宽度! R& }$ k. D& o* \; @
var marqueewidth=300: c3 y8 [! ~# l; v
//高度
! D3 D1 D$ K' `" @' w$ Mvar marqueeheight=259 J3 d% {4 P0 X( _& H" u' l. B
//速度(1-10)
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0 I# h9 |6 U5 D2 V//背景颜色$ `% s1 I- L, {) m4 v
var marqueebgcolor="#FFFFFF"8 e& n+ Y$ u% N* a
//是否能暂停 (0=no. 1=yes)?- D8 L$ L5 y+ n! N' F+ d
var pauseit=10 I/ K" F4 ?+ c4 D
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//修改显示内容% V4 t  d+ x$ A6 ]- p
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>'6 Q3 b9 J$ }, Z6 Y; T; U

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6 D6 _1 x% C( m! }8 ^0 I////下面不需改变////////////
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var copyspeed=marqueespeed) ~7 m& b! c& Q; `
var pausespeed=(pauseit==0)? copyspeed: 0( C* H4 H# g1 Q: n, M9 e1 F
var iedom=document.all||document.getElementById9 \$ r% y& }8 I+ h9 X3 R( D  `
if (iedom): U/ h8 a$ t3 s: K) A
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
% q. X6 Y% Z3 d- {  N2 ?6 T# H( nvar actualwidth=''0 Y; n( s& ?7 E9 y# ^( h, \& B
var cross_marquee, ns_marquee
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function populate(){
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cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee. y; u4 J7 n$ J) ^: ~( @% s
cross_marquee.style.left=marqueewidth+8+ r' J' K' i* M6 b3 W- Z
cross_marquee.innerHTML=marqueecontent. C; q3 P! r- S. X" w
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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$ T# i2 y( q; O- Yelse if (document.layers){
. J4 I' c7 c4 ?! q/ q, K' E4 ?ns_marquee=document.ns_marquee.document.ns_marquee2
) S9 M- S! n; X  Ins_marquee.left=marqueewidth+8( Z0 b. Y, W% @7 F  j, n6 I2 q
ns_marquee.document.write(marqueecontent)
6 u# y# m- ?) A: X# Jns_marquee.document.close()
: W: B4 d9 k; G1 v( d, Hactualwidth=ns_marquee.document.width' A& _2 m+ V) ~8 V$ N; y& c3 C
}
6 h: u2 T9 J+ ^+ ^3 rlefttime=setInterval("scrollmarquee()",20)
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window.onload=populate4 V5 G8 a$ _1 g: P" A6 W  ]& k

! T  q8 T7 i+ a1 u7 lfunction scrollmarquee(){
: R6 g( v/ {, ]' N9 Sif (iedom){9 v2 M5 {% H0 G
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
2 V! }! U+ J% _! a% Qcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed2 d1 {/ i  f- m( {/ u6 M
else
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}
' T- O& Z' {: p& ~' Q! delse if (document.layers){! r8 o: o: B3 x$ ?2 ]
if (ns_marquee.left>(actualwidth*(-1)+8))+ I# _5 O. ^5 W6 J( t( Y, ^
ns_marquee.left-=copyspeed6 U1 D/ e) A) l1 `# h0 Q, J5 w
else
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/ A6 X0 d  U7 T% t% Eif (iedom||document.layers){
/ d# {' l! B7 z. V1 p" swith (document){
1 T9 B% h, i/ G" v4 w* Y5 mdocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')  m; T* m! d- Z' t' x
if (iedom){# [$ q2 x6 N  @% Z$ m0 U2 g9 U
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')5 n  E, S; o' T* h, D
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')/ ]6 X/ Q# I3 h& Y. b
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
( |# J8 V. ]8 C, Q4 ^$ A: Kwrite('</div>')
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# a+ x8 }8 j$ Z4 F" [5 ?else if (document.layers){2 h$ o6 I8 y* Q  j
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')  N4 ?6 B, {* p" N. X5 e
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')2 t( T/ q# `) D
write('</ilayer>')
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, L$ f/ Q4 U! Y' y" C8 W: U) ldocument.write('</td></table>')4 y  Q1 a; P3 N+ v3 Y# I
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