网页之跑马灯文字特效

zw2004

//修改宽度
- U7 H0 v7 j3 x# b) L5 ivar marqueewidth=300
, _- E  a1 ?, `//高度
$ B! a4 E3 ^3 G6 J$ i- \- b% U9 Mvar marqueeheight=25
, \3 q. C; e5 X//速度(1-10)6 V" N: {$ G4 N2 u1 F  Z, F
var marqueespeed=3
9 V4 X6 i. P/ `3 `; E4 Q0 J' @//背景颜色0 y1 h" S& |5 K1 [3 {
var marqueebgcolor="#FFFFFF", @$ E+ b$ F$ J( m+ p% Z
//是否能暂停 (0=no. 1=yes)?
+ j* L7 P' @" O) F# E8 cvar pauseit=1
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//修改显示内容2 {* P! {# g3 I  X" Q- w' l0 R
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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' h/ i% P2 @6 h* e' \, r9 U////下面不需改变////////////9 f9 n! T9 p9 h/ t
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var copyspeed=marqueespeed8 _! b  }6 U9 S; D
var pausespeed=(pauseit==0)? copyspeed: 0
6 @3 _% o" W5 K* |. s. }+ jvar iedom=document.all||document.getElementById
2 x+ @, |, f0 _, m) d$ pif (iedom)
0 k% y/ p* b: D7 Rdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')  p6 ^, A) k( o4 ]# W, o
var actualwidth=''
! j+ X4 R$ o: o6 e( Yvar cross_marquee, ns_marquee+ l! {, s# I. @! ~& `( E

3 U" B# S3 Q! xfunction populate(){) }1 @! D& {% _7 l) x
if (iedom){& T5 p' y8 b4 A, _! n5 C; T# l
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
" p/ k  R, K2 ]( f5 Z/ Scross_marquee.style.left=marqueewidth+8
! `2 C# [/ {$ N! R8 fcross_marquee.innerHTML=marqueecontent) `, W/ @4 |, R3 K, _' ~% ?
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth4 d9 }" G( a1 B4 G1 R
}
! N) q( T. H9 w& k! M2 R$ P- felse if (document.layers){
; P) ~. Q. A, g0 A8 lns_marquee=document.ns_marquee.document.ns_marquee2
! Q; z' K3 c) {- ?. kns_marquee.left=marqueewidth+8
2 x! t! v7 X) m8 ]ns_marquee.document.write(marqueecontent)8 v6 d5 {5 V2 `' l9 s* u
ns_marquee.document.close()
) ]8 o" J* u: J( {4 k( r7 q$ E3 z3 Iactualwidth=ns_marquee.document.width
$ D6 C# C( V: N) ^# s0 U}
$ w2 Z- C; p" T1 ?/ R& Klefttime=setInterval("scrollmarquee()",20)* w8 S: o2 P; h/ z+ x3 Z
}; i# V5 _! c$ g) q
window.onload=populate! _8 b* P3 r$ b( f0 M

3 J$ ^' f2 ^6 ]3 `0 ]- m/ t7 E5 tfunction scrollmarquee(){
8 E' t6 l" M9 F, n3 G0 mif (iedom){
9 t$ c2 a! L1 k7 C$ ?: n! I+ oif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
7 S8 K$ [+ |& C' {* A5 u9 I! |cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
7 V& t& ?4 Q+ {1 K. ielse. h6 E" u3 Y6 ~, ~$ C& Y# N9 Y) Z
cross_marquee.style.left=marqueewidth+8
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}; Z2 a9 I" J! j6 I: B
else if (document.layers){/ ]9 G4 \% o* _% {% {( p
if (ns_marquee.left>(actualwidth*(-1)+8))1 S) O: c- O; R: A! d
ns_marquee.left-=copyspeed7 I4 q- T0 i$ p4 W  Z) M9 u! s) Z
else3 N: Z( v8 n" f( [  u6 m# y0 }
ns_marquee.left=marqueewidth+8
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}
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; X/ s- x& b+ t3 p7 k0 Zif (iedom||document.layers){
* f( V/ Q" E. T; p& }% m4 ewith (document){
  |% ~, e& m; ~- z% `document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
/ }; I( Y9 U: {2 B" g/ A/ Oif (iedom){
+ o; Z9 p" D) H" {- q" Y" x) vwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">'). b4 ?( q! V0 }; I( \
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')6 o+ K8 }% p, R9 {( ?+ C: |
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')/ v# r8 A/ _8 f, z( i6 A9 w# i
write('</div>')! @  _* l7 ?& R8 @; b3 T9 N
}. q# V# j2 M  D; K' Y$ ~0 L# T
else if (document.layers){
5 Q! }3 Y6 Z: i, f3 ~5 ~write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
' m1 ^" w* I/ b/ e' B4 Z; ]write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
. O: A( O) v$ D8 {6 v* `write('</ilayer>')
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& R1 k+ m$ E3 a/ N1 h& A' }document.write('</td></table>')8 z6 T! S5 v6 p" ^
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}
( Z3 e: \- D: w3 D: ]</script>