网页之跑马灯文字特效

zw2004

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//高度
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//速度(1-10)
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var marqueebgcolor="#FFFFFF"6 e1 V" [6 W6 _! ^9 x
//是否能暂停 (0=no. 1=yes)?' j7 M% K# R! V
var pauseit=1
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$ e& M3 X0 e' X/ c4 m//修改显示内容3 `7 ~, U" P- b/ J' 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>'
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" }$ S# I! b1 v7 B////下面不需改变////////////
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var copyspeed=marqueespeed% n% L' }+ ~" k5 V. B: `, E
var pausespeed=(pauseit==0)? copyspeed: 0
8 w6 E9 t+ r$ q! J- `6 ?% ^, `var iedom=document.all||document.getElementById
, Y6 K. T+ v. g( W8 J6 p; Bif (iedom)
; j' [3 U$ {* W6 ^7 }1 M9 Gdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
  a: @0 c! U1 k) `/ s. Rvar actualwidth=''8 m% V, l4 g4 u$ Q
var cross_marquee, ns_marquee
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function populate(){3 {: j5 G3 ?) ]  P; ^4 `
if (iedom){3 A1 X8 m8 \! V6 @
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
  \+ X$ f2 a$ mcross_marquee.style.left=marqueewidth+8
" K; f5 j; w: |+ c- S3 x" rcross_marquee.innerHTML=marqueecontent
6 l4 W* N. i3 @$ L% o* R7 _actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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" Y4 z+ J+ ]' i2 C( [else if (document.layers){5 Y) \4 w' D& R7 o6 B* o+ N9 u
ns_marquee=document.ns_marquee.document.ns_marquee2" ^" x7 ]  C$ d+ r( w! r
ns_marquee.left=marqueewidth+8
) ~. o! Z# R# `, t1 vns_marquee.document.write(marqueecontent), ]  j2 ]  A( Y5 m
ns_marquee.document.close()
! [6 U  A/ }. M8 f- y0 z5 gactualwidth=ns_marquee.document.width( k: Q, u1 m  O, X
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lefttime=setInterval("scrollmarquee()",20)
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window.onload=populate
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; F3 T: A) R# ]' W/ P7 @function scrollmarquee(){
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: Y- ]/ @' S6 _# o3 V3 L+ Z8 a4 aif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))7 @; ]3 _8 n* l: l7 j5 S
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed4 _8 w  R5 H9 c, Q3 d5 ?
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cross_marquee.style.left=marqueewidth+8; P+ Q4 J) h) J7 g; \0 C9 e3 q3 ~- t
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else if (document.layers){
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ns_marquee.left-=copyspeed" E$ v5 b* T: N0 r4 P- a4 P
else
- C* ]+ h( g. L/ I- J( ons_marquee.left=marqueewidth+8" ]3 Q9 g" F4 L6 a5 Z) i7 m
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- s* }6 Q9 n3 X. M6 x$ ~( C+ }if (iedom||document.layers){
: H+ G9 o: R2 L/ F% q/ qwith (document){
; w+ J! j8 n; J& |$ bdocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')# y6 i2 X% A4 d0 s. i; P' S$ ?3 Z. I
if (iedom){$ X0 e0 I$ T, r( t8 `9 k8 B) V. S
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( n7 N+ X1 G+ Q) E1 c* Y# \' R" uwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
/ @' ~, L1 d" x: P; I  P3 _( e4 ]write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')$ j+ @2 V3 P9 l; V0 {- T2 u
write('</div>')) w# R/ y) t' [6 m3 F9 V5 ~
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2 k+ j6 r  b% J' U$ T4 }( Z5 w0 nelse if (document.layers){3 J5 f" }0 o0 {! P5 ?5 W
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& t) W, `- B: w; N* s: ]write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')! ]( q) Z7 x: w/ t1 G% \8 r
write('</ilayer>')& _) t5 M# V# x3 F
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3 |' ]$ }+ T( q% Ndocument.write('</td></table>')
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