网页之跑马灯文字特效

zw2004

//修改宽度
/ d# D/ R/ s3 j, m1 R, u$ pvar marqueewidth=300. I& V- d) u1 E1 V9 O' {
//高度3 a8 b8 n/ P9 ^7 v; @* f' ]
var marqueeheight=25
# P/ t# Y9 K" Q; f' o& y& j//速度(1-10). ]' E  E: @9 e3 M) e3 u) Q7 ^- a
var marqueespeed=3& P3 F( `$ D0 ]/ u( ?
//背景颜色
8 X* I* U% O* W0 Y# qvar marqueebgcolor="#FFFFFF"
1 F4 m6 P: k+ u- d//是否能暂停 (0=no. 1=yes)?
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//修改显示内容( T# J4 n, Z- T' D
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////////////" i3 r) W  w6 l# T0 N" k

  A1 A( ?, N, tvar copyspeed=marqueespeed
) w3 n3 S! o/ I" X# |% r. \2 Fvar pausespeed=(pauseit==0)? copyspeed: 08 s8 c4 [* D+ C, p' S0 A) Q! }
var iedom=document.all||document.getElementById% L/ D" h+ N6 r3 V) U" g: C
if (iedom)
8 a5 }" V) d) _' w5 M6 D3 `, Vdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')4 ~0 O) a- Q, t0 D% N
var actualwidth=''
2 D" p6 f- w2 Avar cross_marquee, ns_marquee
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- M6 b$ Q  E# wfunction populate(){( r* z, [5 m7 ?1 @
if (iedom){
2 M6 `/ \7 z  Z; d6 w( Ccross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee% T, X4 y  A8 m( n) K( x( J
cross_marquee.style.left=marqueewidth+8
5 N. C2 V2 v" U5 o3 A* G, ^cross_marquee.innerHTML=marqueecontent
9 V8 t/ u9 T- x# R% o* g! iactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth4 y. R* P6 S; O5 \: }" R, ]9 z
}# c6 r! ?4 p2 S9 I! Y( R
else if (document.layers){
% D; F! u( l. e1 Mns_marquee=document.ns_marquee.document.ns_marquee2
5 y3 H# X$ ^0 s4 b$ g, Lns_marquee.left=marqueewidth+8& @: |3 r. j2 D  n
ns_marquee.document.write(marqueecontent)% j0 e' A) j* y
ns_marquee.document.close()/ ~3 t! x6 \) |
actualwidth=ns_marquee.document.width
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6 ?2 n0 h  V6 T0 B( i' w3 g8 Mlefttime=setInterval("scrollmarquee()",20), ]3 }/ k/ |0 b: |5 M
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window.onload=populate* z! U/ z* c2 T1 t

$ R  ^) M% A. A, O2 E$ ^2 Gfunction scrollmarquee(){
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if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
3 {" B" `# E7 A% hcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed3 o1 s, \+ Y; h* m
else# X  W4 e) g+ |. k# Y
cross_marquee.style.left=marqueewidth+8
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ns_marquee.left-=copyspeed
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ns_marquee.left=marqueewidth+8
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/ `' g8 D) d8 v% H* ?with (document){
! D) C" L8 T, y" g( M8 G; r7 odocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
9 V- l- V/ x2 z- V6 I7 ?+ tif (iedom){2 P6 R& v) x; S: a* z+ S2 \5 }
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& P+ a- u7 X3 U8 A5 o  e: Owrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
) T9 @6 p2 f# b2 I8 O" T3 mwrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
- ~- v0 e. [( w; Zwrite('</div>')
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; ?: j, R& H* K; p; w: nelse if (document.layers){6 w& A+ }" V: Y; G- b6 f1 x* n
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6 ]& s- f) `, M1 awrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
, G# P  k6 u6 `3 O, L/ p1 Pwrite('</ilayer>')
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" B& H2 F, [$ y( I, E7 zdocument.write('</td></table>')- z2 d  S: Z+ W* x  Q. C& C. M3 ^
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