网页之跑马灯文字特效

zw2004

//修改宽度
  o: I: V0 s! \  \& x4 Qvar marqueewidth=300# i* O/ z% f" E7 j5 P0 a
//高度
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//速度(1-10)
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//背景颜色
* N* z  p; H9 d, H" b: `var marqueebgcolor="#FFFFFF"
, Z8 z6 f) q1 A' `  j" B- U//是否能暂停 (0=no. 1=yes)?
: u, O5 ^  u- |var pauseit=10 m5 N$ m2 C/ w! f! C5 i
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//修改显示内容4 t" G- {$ N2 m. S" V. r$ q+ K
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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////下面不需改变////////////
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var copyspeed=marqueespeed
. f5 e- G7 G: s- p* e" S' p+ bvar pausespeed=(pauseit==0)? copyspeed: 0
6 X5 i0 u2 t/ D: s: u$ Wvar iedom=document.all||document.getElementById
+ U: n$ B2 s2 T5 B  }9 D+ {if (iedom). o& t4 Y$ R! Z( `( W
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
& G; O, w( c3 `5 z" zvar actualwidth=''0 r; D, g6 r% z$ r% ?; R/ F
var cross_marquee, ns_marquee, c- m1 f+ M+ R
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function populate(){
' z3 `5 i" F6 A4 sif (iedom){
; p+ [  z" M, Zcross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee, Z7 b% G9 z. L: E
cross_marquee.style.left=marqueewidth+8! _9 V- M) h4 `& s7 Q
cross_marquee.innerHTML=marqueecontent
' N! I( ~/ H3 f; bactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){3 z9 M9 L2 ~4 V0 A$ s
ns_marquee=document.ns_marquee.document.ns_marquee2
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ns_marquee.document.write(marqueecontent)
4 Z, Z3 g7 `$ k; ons_marquee.document.close()* v/ [! O3 w6 ^' j
actualwidth=ns_marquee.document.width% s0 ~5 A) [5 E, L, n# _
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lefttime=setInterval("scrollmarquee()",20)7 ~  |( U# S9 j2 B/ g  X
}
7 o; G$ d- `; Fwindow.onload=populate
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function scrollmarquee(){
1 U- }/ ^- }# a0 \: P7 K; Fif (iedom){4 G7 O, d. ]+ q
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))3 J3 @1 C, @4 r3 S/ C' ~. B3 I" }8 _
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed) ]0 u' p/ |6 B) G% k
else; `2 m! f1 |/ |$ o3 r; [
cross_marquee.style.left=marqueewidth+8- l5 c0 x  n+ j% D# k: M1 g) H$ R8 Y4 `

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else if (document.layers){- z, s5 J# h' X+ B. X/ P$ `' D
if (ns_marquee.left>(actualwidth*(-1)+8))
& x+ Q# h3 `( b+ }) s1 g" y6 qns_marquee.left-=copyspeed
. Z/ c" [- J% s3 R8 m3 X. l9 U' nelse
# a+ x- L9 ^8 ?( N& Ins_marquee.left=marqueewidth+8
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}
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/ H/ o. z; W1 h) _if (iedom||document.layers){
7 o- |( ^7 i% w) \with (document){1 @+ _/ M2 j6 k
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>'); m% s: f- |( W2 x! `* c
if (iedom){
# |( C; e. b1 E) k! O0 mwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">'). t, y0 v- ?) X- w# S. G
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')" }! c' W/ }' Z
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
: Z. F" q7 S; _. Ewrite('</div>'). L6 y1 F+ j( D2 w! ^
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else if (document.layers){
/ ?+ L1 g+ k8 [) Pwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
' N, i" r" b5 g. b! H& t9 [, |) _write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')% \. p; C# J' G$ V2 Q" V
write('</ilayer>')
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document.write('</td></table>')
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}
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