网页之跑马灯文字特效

zw2004

//修改宽度
; K9 D3 h% l; R8 ]/ _7 K& cvar marqueewidth=300
6 _5 N* f3 Y. F& e0 [! Z$ _//高度5 p$ G+ K: d: n3 ~7 q1 J
var marqueeheight=25
/ [; w( @. W! v$ `( H//速度(1-10)! k+ a, \  j$ Z# e9 V5 E8 B! s
var marqueespeed=3$ ]9 U; F1 d1 y' D
//背景颜色2 t) o0 n% _1 ?7 a8 c- \' b
var marqueebgcolor="#FFFFFF") P) z* [. \6 Z: v
//是否能暂停 (0=no. 1=yes)?1 M6 j1 }4 p* U9 j% g2 X' R9 j
var pauseit=1
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0 x: g# U2 C' Z8 b8 ]& q* Z# e//修改显示内容
* ^4 f3 z) E3 m0 N+ v& vvar 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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1 a/ w- W( U6 X% l2 X% Mvar copyspeed=marqueespeed
; R, e# K% Q( s5 _, n3 A: x, Yvar pausespeed=(pauseit==0)? copyspeed: 00 v; [$ H4 o  ?! G2 X: `
var iedom=document.all||document.getElementById" Q5 `8 I+ {, k+ D* z" l
if (iedom)' k" B+ G4 V" G; P5 d5 o7 l
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
. V' P$ V/ e. l4 I2 `4 t. yvar actualwidth=''
) M5 j+ S- ?" P0 `1 g. J% L. mvar cross_marquee, ns_marquee
4 B4 }) b. [+ v8 n' }5 I& {* A6 v8 h* l& X
function populate(){, J: N  |/ B# C& x7 J
if (iedom){, E6 T; m& r! T. z2 G
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
9 x5 |: g* R; w: p% i' u' D/ across_marquee.style.left=marqueewidth+8
& R1 J' S) I" Z" ncross_marquee.innerHTML=marqueecontent9 o5 M3 G; v6 q$ e7 f% B) V; J
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth! Z: c/ r1 @, z' \/ U7 G; F
}# u' A: z. V% x6 t/ Z
else if (document.layers){. s# `$ U0 X! G5 Z# A3 J/ v
ns_marquee=document.ns_marquee.document.ns_marquee2
- b# F1 _7 u5 v4 _6 \6 I4 ~ns_marquee.left=marqueewidth+8
2 v% y' j, a" j2 Ons_marquee.document.write(marqueecontent)* D# A# F# V/ M
ns_marquee.document.close()% q& D1 C" a: S! T" D; }% T' b* L- y" r
actualwidth=ns_marquee.document.width
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lefttime=setInterval("scrollmarquee()",20)
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window.onload=populate
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function scrollmarquee(){
0 K' w3 ^/ P8 _* l5 R: p1 Kif (iedom){8 h. t# J) Y0 u6 c5 U6 X
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))! I; H  `# j8 h
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
9 q* ]" f$ Q) x1 Q' e+ F: |/ L8 Qelse, O) v4 T0 Q* M5 g$ [  ?3 ^/ A
cross_marquee.style.left=marqueewidth+8
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}
7 H; s( F1 K. _( K: |else if (document.layers){0 {6 J" l; j+ s# _7 F% {
if (ns_marquee.left>(actualwidth*(-1)+8))
( Z5 {1 D( @& F7 K/ f6 kns_marquee.left-=copyspeed: ^! D3 Q- _/ ]. O6 ~3 I6 P: R
else
1 V' I( N' Y) N8 M3 j6 K& N& f( P8 Cns_marquee.left=marqueewidth+8
2 }% K& s# b. |7 b}
" S, r7 c" k) w/ A! Q, ?- ]}
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if (iedom||document.layers){# T9 r9 ^- S$ [: [" {% N
with (document){( K: y7 f" V2 ^
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')8 f5 f" C9 ^7 w
if (iedom){
# Z2 H2 I5 q  ]& X& t  L+ @write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')6 A2 H9 H8 }- {) y# g+ }; c3 s
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
2 q' N6 i5 A1 [0 k/ Rwrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')7 [% G4 }. |# m( B( }4 p% x% ?, y( M
write('</div>')
( Q5 ?2 \) v; ]: ^: S9 D$ p- f}
+ e7 _/ i/ j. Oelse if (document.layers){# s  m" {# b5 H4 ?( ]
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')( K0 o& h; O  A  n
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')0 s; U1 \( L& ]6 L, t; V9 e! I
write('</ilayer>')
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document.write('</td></table>')
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+ k5 L% d  |+ I. h* D</script>