网页之跑马灯文字特效

zw2004

//修改宽度; ]9 ^/ T; p+ {; L' R
var marqueewidth=300
6 R0 H) @8 X- T" ~5 P: Q) j//高度$ v' l% g/ B- i- |  C
var marqueeheight=25
8 R' u) ^5 V1 j; a% g- |( f//速度(1-10)
/ Z) ^+ [, b! e) @) Ivar marqueespeed=3
& r  }( M" h& _# ]! f//背景颜色5 w, ^+ B6 T+ U3 g: W- R  |
var marqueebgcolor="#FFFFFF"
6 r) C" J- H+ P6 B, N; Z  E//是否能暂停 (0=no. 1=yes)?
" r% U7 Z6 m9 S6 U1 @var pauseit=14 [4 N3 b1 q( y, n) `# S
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//修改显示内容/ D/ e" ^9 g  L  g( l3 s6 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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4 ]9 U* w3 _! H' [# k////下面不需改变////////////6 Y" u. k7 l; ]* o) ]
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var copyspeed=marqueespeed
" h' q) v0 U# U/ }2 Yvar pausespeed=(pauseit==0)? copyspeed: 0
( y" ?  X6 h; Q2 H0 r% o9 g+ g5 Gvar iedom=document.all||document.getElementById, k* D- h7 w& f+ g. u
if (iedom), m6 Y( c: R3 M4 ?4 X# W
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')% \9 V1 u/ S- e
var actualwidth=''
: c0 k! @3 S7 ?3 avar cross_marquee, ns_marquee5 `: q, z2 e. }8 ~; ]

# |: Z7 \& p3 e# _& Ufunction populate(){# o& ]6 r" p  H9 Z. P, V; O- t
if (iedom){
! x2 C  s# P7 r3 |cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee% l  c) T# |5 d, A9 j7 w
cross_marquee.style.left=marqueewidth+8
. B& C3 Q6 l$ Mcross_marquee.innerHTML=marqueecontent; w* |7 k% B  V# O3 R
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){$ L0 [* B% {3 E4 _7 a
ns_marquee=document.ns_marquee.document.ns_marquee2
6 k  t7 S5 o7 g  v/ y* n4 jns_marquee.left=marqueewidth+8( O% ]3 z* J# q' o, ?" Y6 I- J
ns_marquee.document.write(marqueecontent)7 r/ e1 k" V: s- l$ N9 Y5 A' T
ns_marquee.document.close()
  S0 C. D8 {( ~7 s6 y' P5 R! h9 Iactualwidth=ns_marquee.document.width
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0 X+ b% U8 R$ klefttime=setInterval("scrollmarquee()",20)$ {6 Z0 b- m4 p+ P! \. B
}
! P5 u4 v/ J9 Q2 O8 A  ?$ Y+ Iwindow.onload=populate
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function scrollmarquee(){
0 }. d( s$ @0 N* u4 Kif (iedom){- h$ Z( l- e$ r% K& V7 `3 _( X9 w, _
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8)). Y1 `- T" }/ P3 F7 p; S  e
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed# z  }/ y) |1 B  e$ ]
else
: E/ B. [$ @$ ~9 I2 e3 E( jcross_marquee.style.left=marqueewidth+84 i) g0 u$ R+ @- E4 N
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else if (document.layers){7 @- B5 u0 k/ v% C8 R7 M: \
if (ns_marquee.left>(actualwidth*(-1)+8))
8 _2 n( U; c7 X8 sns_marquee.left-=copyspeed8 X! T; Y; p! m5 h$ a
else+ D. ]: q! |9 l- p
ns_marquee.left=marqueewidth+8+ {/ y4 O% u/ Z: ]6 P: e, g. o0 k0 H
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}
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if (iedom||document.layers){
) N* M4 Q  L7 Awith (document){: @+ W3 O6 |. Q& e- P
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')* t, ?" N' \1 p
if (iedom){
. q& x7 L7 u: Z! e/ R9 N% Awrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
& ^/ v5 `  H7 Q7 j0 Y. m1 ?9 owrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
. `+ h+ |! l7 Cwrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')9 l! M& b& O: w* o1 c% I: T
write('</div>')# k# ~" `8 [3 f# ]
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else if (document.layers){
9 z4 M- p: n& L9 ~write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')! E: x6 T- h8 q5 F/ ^+ T: A
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
  S0 j) H+ J8 rwrite('</ilayer>')
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document.write('</td></table>')
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3 `$ N* k% R  }% P0 e</script>