网页之跑马灯文字特效

zw2004

//修改宽度: P9 a/ `* ~% I" c; L& S. D
var marqueewidth=3005 |5 U. @* s4 {- f; C" @% u/ q; A2 H
//高度
+ K% e* P6 w9 z8 Lvar marqueeheight=250 R. V1 a2 x4 M, A. k. U% w! T
//速度(1-10)
1 ]( i7 c* A: R7 Uvar marqueespeed=3" v+ Z" ?! }' j
//背景颜色0 Y+ r3 G% ?2 u
var marqueebgcolor="#FFFFFF"& z& u% h7 M; E; |
//是否能暂停 (0=no. 1=yes)?* h+ }2 x+ B9 T& {) ]
var pauseit=19 D' `. I& _2 `9 ?, \; x! X3 |# T
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//修改显示内容
. X3 ?0 W. p. \$ R, `& K$ O0 A; Avar 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>'0 h3 N+ K& C; U
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0 `- V: T! ?0 m////下面不需改变////////////
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var copyspeed=marqueespeed  G: R& i+ |) _0 j. ?% `: S
var pausespeed=(pauseit==0)? copyspeed: 0
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if (iedom)
% b' @. T6 a: `document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
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1 y2 R2 J: m4 `. xvar cross_marquee, ns_marquee) I1 O( \: J% j/ M

. {% x) x1 {3 T3 w- y# B" Zfunction populate(){
8 K* L) r- y' n# V8 gif (iedom){
* Q2 ~; w+ H6 R0 X6 }) {cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
7 f* A; g+ e% z* scross_marquee.style.left=marqueewidth+8/ f+ I6 C* ?" g% O1 z# B! B) O/ z
cross_marquee.innerHTML=marqueecontent' \$ A3 d1 v/ y- I3 y5 x
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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ns_marquee=document.ns_marquee.document.ns_marquee2! p" n  A: h2 R: K
ns_marquee.left=marqueewidth+8
6 c$ W; k+ t/ `$ Q* Uns_marquee.document.write(marqueecontent)
: Y- e6 m! d; r# X  X' D2 g4 \ns_marquee.document.close()6 p9 X3 X3 ?' z) Q7 o, Y! v
actualwidth=ns_marquee.document.width' h2 l/ a& h* n8 \8 `+ O
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lefttime=setInterval("scrollmarquee()",20)
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function scrollmarquee(){8 Y# e+ `4 ?6 o! K' {
if (iedom){! z8 M) W- z& o4 C
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))& O9 G9 o& e8 G* X  H; y
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
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cross_marquee.style.left=marqueewidth+8
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4 d. m8 O, W, G" ]& A1 v1 ~else if (document.layers){
* f9 |3 A% e4 n! aif (ns_marquee.left>(actualwidth*(-1)+8))6 R5 I( W' k  P9 Y$ N, X7 E
ns_marquee.left-=copyspeed
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* ^/ M6 P& b: }" A% C5 m* w' ]1 dns_marquee.left=marqueewidth+8
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if (iedom||document.layers){
1 r0 n) X  |7 R; a  bwith (document){" ^$ u+ d$ o! a" e
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
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write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
0 \1 o# o5 P# b1 J! F! z1 ?/ pwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
3 a7 v' H; L3 F' u0 d" ]write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')/ `7 [$ W( ~2 w
write('</div>')6 [  T2 \: g9 ?! p9 Q
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else if (document.layers){0 J$ h: M5 Y" \, u8 o  N
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')& H) N# ~: c( \+ g
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
) Q2 M6 G7 `4 x! Xwrite('</ilayer>')
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document.write('</td></table>')+ r) _: a; x3 S9 l9 x
}
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  H4 ]1 Q3 S$ y& Z; {3 p</script>