网页之跑马灯文字特效

zw2004

//修改宽度
: V+ k, F# Z% |var marqueewidth=300
! N/ \, u6 @9 ]//高度7 y1 g1 b; J3 E! a+ I
var marqueeheight=25+ ^, e5 I% E- Z( n% r  n% M& {
//速度(1-10)
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. i4 e4 N3 D- r- G6 {# `//背景颜色
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//是否能暂停 (0=no. 1=yes)?$ \4 F% `6 F& F' x
var pauseit=1
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//修改显示内容% V3 F4 T. \+ _' |0 C9 ~0 g
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>'% d' c4 ]8 a( W! H: _

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6 m" m# F9 h2 {& J# b+ h% E7 I////下面不需改变////////////! Z  A( m- `; m% b8 P7 n% H
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var copyspeed=marqueespeed
% M7 `; \5 _7 V5 d- svar pausespeed=(pauseit==0)? copyspeed: 0: o. w) j/ C+ F( S  T. w. l
var iedom=document.all||document.getElementById
  S' S" D( N+ y8 Pif (iedom)
; @* j$ E8 \8 k9 p1 @document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
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var cross_marquee, ns_marquee
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% d( ?# c' f0 v7 {& |function populate(){
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; M+ i4 I& ?  Q7 _' H2 c8 `cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
) h3 S% {7 X7 U+ F0 V5 fcross_marquee.style.left=marqueewidth+8
) n  Z" ]& h' m! gcross_marquee.innerHTML=marqueecontent2 ]# |$ R& v1 H
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){1 s. ?% H* S$ B3 D3 T0 e
ns_marquee=document.ns_marquee.document.ns_marquee2
: R3 q- |8 o/ T$ m: Ens_marquee.left=marqueewidth+8
; ^$ s- a  y9 xns_marquee.document.write(marqueecontent)4 |3 u3 c, R* ]9 g1 D" l7 H
ns_marquee.document.close()
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lefttime=setInterval("scrollmarquee()",20)# q8 Y+ y8 {! a  S7 o2 ?
}
+ a2 s6 f" l9 u' U9 [/ A$ Y+ `% {window.onload=populate
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function scrollmarquee(){; X; @3 c! r! a7 t  l" T
if (iedom){$ B3 x% R1 Z' W/ ]- ^6 }6 s. t/ b
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))7 O& g8 l1 r. M8 I) t1 W/ D) T
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
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else if (document.layers){6 H4 T; }3 |, a9 r) X# I% `
if (ns_marquee.left>(actualwidth*(-1)+8))
$ F+ K4 s7 t* m, ]+ `ns_marquee.left-=copyspeed
/ V7 p& i5 E- e2 k4 h2 j) Felse
1 [$ N3 L. b4 G; T* T" Ens_marquee.left=marqueewidth+8
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if (iedom||document.layers){$ l! r* f$ K6 x
with (document){. [% v% L3 T- J
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')+ G  W7 B+ `# \, e& b( H# v& L# M
if (iedom){$ C' q/ H; C8 C; f6 k! N
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')8 X5 Y9 j& [5 H- u* G( _: u
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">'): [5 ^% A5 I4 Q# b
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>'). g7 e" v1 y) @( b% c$ f" a
write('</div>')
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else if (document.layers){! @) M9 k( Z) E' t( }- f
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
1 k7 A7 K" I) V7 x1 V8 fwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')  Y! r6 z9 E3 f0 h6 ^- _& X
write('</ilayer>'). {( N6 n+ a) u* [4 n
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document.write('</td></table>')9 Z1 j+ V/ g) G$ J2 t8 U: ?
}
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