网页之跑马灯文字特效

zw2004

//修改宽度
5 [, H0 \, z. qvar marqueewidth=300( Q( }$ v1 m! v; v! {  Z
//高度
5 x& V* z; m4 x3 x4 _# B9 vvar marqueeheight=25
# D6 s2 p) Z6 Z0 m) F: D# ^- X//速度(1-10)6 ?+ Q9 B% e" O. \# ?9 I: h$ d& A" V
var marqueespeed=3
& L- X' m2 _! a# W3 D# t//背景颜色9 ?" s. n: ]& X) R) ?- a8 ~  R/ u8 ^
var marqueebgcolor="#FFFFFF": H: ?3 [9 J) \; i0 O$ l
//是否能暂停 (0=no. 1=yes)?$ `5 }) x( O3 q4 ?; g& f6 ^
var pauseit=1
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//修改显示内容
2 R- n0 z* z, S7 xvar 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////////////
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var copyspeed=marqueespeed$ E2 A0 C7 k$ f4 O1 d  C. O4 D3 S
var pausespeed=(pauseit==0)? copyspeed: 0
5 f  d4 l2 R% B4 R4 q4 {: C( Kvar iedom=document.all||document.getElementById
5 B  X. @$ h( b! t1 Y0 Q7 o  kif (iedom)
1 V$ ?1 Q$ y: l' V  edocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
; n& P4 m  s8 svar actualwidth='') ^5 K, k+ i' W1 v4 T* [# [. i
var cross_marquee, ns_marquee5 m4 g  b) @' V& w

9 N) D) z' i% z% p6 L# x  I  kfunction populate(){7 _$ _$ C3 y# ~% m, \1 J9 K
if (iedom){
, u. U2 s7 g9 `2 I( W+ tcross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
5 I  m( K# u% O9 y1 b+ r6 kcross_marquee.style.left=marqueewidth+8
1 X; T& c2 ~, F7 \cross_marquee.innerHTML=marqueecontent* c, d5 X( O3 k7 ]: I0 o: o/ D4 r
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth6 X; ^" B8 B# K  r/ n* t
}
9 ]* A2 }# L2 T1 q. c4 Yelse if (document.layers){
0 M& V: p! a6 T2 }- Hns_marquee=document.ns_marquee.document.ns_marquee2
2 z4 q! C3 ]# U8 H7 yns_marquee.left=marqueewidth+8
8 O- e4 J4 z) e; }9 Gns_marquee.document.write(marqueecontent)# J! L& N' ]1 z% s5 d. t% U) E! [
ns_marquee.document.close()
" b. A6 D" {6 t( |3 E9 Y9 Nactualwidth=ns_marquee.document.width# G& t$ q" h! G7 j( L$ _, ~2 v
}
6 m2 l  T3 q5 t# f# s( d/ e  }: mlefttime=setInterval("scrollmarquee()",20)
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window.onload=populate" Z* W7 N3 W8 ?; C4 l" g* H

7 h5 r' M5 ?2 Y+ X1 Nfunction scrollmarquee(){: |1 I; ^( s( C2 k5 _' X
if (iedom){
" \* \5 x5 ]" d) k  f; P6 y# Gif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))1 p; D0 H9 p& F' W' i% _( i
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed+ H+ p' X# _4 |" Q0 U/ U
else; }7 Y! L# @# x& D7 {
cross_marquee.style.left=marqueewidth+8
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else if (document.layers){
$ j; @/ Q  u. _5 gif (ns_marquee.left>(actualwidth*(-1)+8))
" v2 l* X5 T! [& @& J1 s2 [" Ens_marquee.left-=copyspeed
4 m) W, t( X" q- M: n. Felse
; U- Q5 m' F# o! C7 d- Mns_marquee.left=marqueewidth+8; D( \: l1 |6 @/ _" e! i
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}
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if (iedom||document.layers){2 }8 I, x  H( H  H$ y5 _& e
with (document){
' t  ]* D" r8 ~document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
" c; p0 z* j. ~- l( O) \if (iedom){4 J% Q& c' t) T' q, P
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')% Z# E3 ^5 R" R1 Y
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
( q$ o) @' s, Pwrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>'); f9 c* C8 y5 `; s
write('</div>')
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else if (document.layers){
5 r- {9 L8 R# @7 J" _# ^write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')8 |. m1 _/ @( t4 ]7 D3 D$ @/ S  i
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')7 a, {( a4 n! P7 N: A( B
write('</ilayer>'), ~" C  [: @+ @  p
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document.write('</td></table>')1 h2 |$ x/ z* A! V" \* |. h
}
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$ l( z9 ?, {/ u, E! n. G</script>