网页之跑马灯文字特效

zw2004

//修改宽度
7 ?3 N! V& B. @  U9 C4 J. Uvar marqueewidth=3004 E# P2 s$ ?: V$ T$ _$ d6 @
//高度
9 L) w: [$ Q. ?3 E( cvar marqueeheight=250 K# f$ F( t1 t6 P0 u- S
//速度(1-10)
% c, p- y8 ^% g# avar marqueespeed=3( C) `# o3 c* `0 D! l" G- n: e
//背景颜色2 N, ~/ Y5 [, t+ v% f! a
var marqueebgcolor="#FFFFFF"
- L$ O; T8 H) G- }8 X% O) U+ g1 y+ @* V//是否能暂停 (0=no. 1=yes)?
* B, ]; Z# h+ N9 ?8 F5 K6 m3 A  xvar pauseit=12 x# Z1 K) v1 O$ s% G1 G* ]0 u9 W

  I6 x2 b8 m5 A) `. v, T* z) P8 O+ l3 _//修改显示内容
% o/ D5 }9 F. w- @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>'1 |5 K' `2 \% f5 J( _  d

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////下面不需改变////////////: p& D* u" v- [2 b1 x& V% j/ F/ C
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var copyspeed=marqueespeed& B: L' ^  `3 ]9 O
var pausespeed=(pauseit==0)? copyspeed: 0
; H( j. _9 F8 h. o% y1 i! I6 e# Wvar iedom=document.all||document.getElementById
, @" Z( u) p  @% c" fif (iedom)
  O% p9 }8 a3 i! F6 ~document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')* ]+ [1 d$ Q1 B* r; x7 Y$ E6 N
var actualwidth=''
% r- C- P8 s9 ~2 \$ mvar cross_marquee, ns_marquee
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function populate(){
4 \0 S5 G; e  [2 K$ ]( Q" xif (iedom){
5 W# L: r  [+ W9 b. V4 ]cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee( i7 B$ M! q* [7 v! }2 W* b  j0 A
cross_marquee.style.left=marqueewidth+8
% S2 U; w) O8 G2 mcross_marquee.innerHTML=marqueecontent
; M) ~7 @: a) R* b: y7 `actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){
- ^- `8 Z& z* t! b3 o: G* vns_marquee=document.ns_marquee.document.ns_marquee2
9 p4 a: f2 z$ pns_marquee.left=marqueewidth+8& }7 _( C5 \3 l3 K* P# W
ns_marquee.document.write(marqueecontent)6 E7 U+ Y1 @$ d! w
ns_marquee.document.close(): \' b: @  N( r! d
actualwidth=ns_marquee.document.width, @$ n, _/ k/ W+ @. m
}
. \7 L" V" g/ x9 \" u5 }lefttime=setInterval("scrollmarquee()",20)6 }, y6 ]% w* n  O. `, A
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window.onload=populate- ?; m$ Y5 }* X) f1 t5 C
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function scrollmarquee(){/ z1 W9 A, d+ H7 N( S
if (iedom){
4 B/ E/ g8 s0 Kif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))6 u5 d5 E5 y7 z* C4 F2 T. H
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
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4 F( g& s- x) J2 h' ~% }3 C1 ~: l! Ucross_marquee.style.left=marqueewidth+8" n  _0 n4 s5 e+ a* B3 R4 d

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else if (document.layers){$ k+ @5 o. t: [9 c  z4 D3 e1 ~
if (ns_marquee.left>(actualwidth*(-1)+8))6 W' c* h: i& T/ s9 R2 N
ns_marquee.left-=copyspeed. W4 p  q! Z+ O; ]# L
else9 e% @0 h7 F6 n. x8 t
ns_marquee.left=marqueewidth+85 H& j3 s% @  v0 I' }
}
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if (iedom||document.layers){  H" p4 a  c( G2 q0 r- v/ \
with (document){
9 n; k7 ^3 I( Qdocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')8 \! l- h7 \) T3 H! `5 o
if (iedom){
) |. ^1 q* e5 S) |1 c2 O4 B* uwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">'). Q; E& }) ^9 |8 {
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')% x5 x. l( h# n; v; l# N/ R
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')) Y6 p" H6 y( r- ?: @; `1 I4 `! P
write('</div>')& ?) @0 e- T: i3 B: H) @; H
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else if (document.layers){" ~3 \0 m. Q, C/ j" }
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
3 b: z1 _: O) Y$ dwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')7 Z5 W* o, x" z  r, K
write('</ilayer>')
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document.write('</td></table>')
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</script>