网页之跑马灯文字特效

zw2004

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var marqueewidth=300
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var marqueeheight=25
2 ^/ @, W  A/ E2 y( R3 P3 @//速度(1-10)
. p: Q# \* \5 F* M3 D2 |% Ovar marqueespeed=3
6 z  F- U7 A5 A( p! D" J, U//背景颜色7 k  ]! n6 m0 J/ `  L+ J
var marqueebgcolor="#FFFFFF"
7 Y" Y5 O) ^: C, _* M! {7 K//是否能暂停 (0=no. 1=yes)?# F/ Q% z# K3 e/ U
var pauseit=16 _( ]8 E9 q3 K2 A* J* }4 E- [
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//修改显示内容7 c" g" Z" x% P: Y8 v7 B  F
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>', n% h! i' A; h) i1 P

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////下面不需改变////////////5 b! B% }4 n9 y" U0 \4 Q

0 y$ z* j- V: e; C9 fvar copyspeed=marqueespeed
3 C. Z: }, F3 r9 D6 o4 o: Lvar pausespeed=(pauseit==0)? copyspeed: 0  \$ }% R6 N  |' [
var iedom=document.all||document.getElementById
# x+ k5 q8 O( x  @6 T, rif (iedom)1 q$ E$ d( h/ \) l4 o9 J
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')4 @! d* I, @% L- X$ k* t% \
var actualwidth=''
0 V4 I" E0 D6 b% E2 |3 V, Rvar cross_marquee, ns_marquee
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function populate(){
  q9 X9 y0 G) w  M& H, |6 _if (iedom){( Y; O6 Q) }6 k$ A7 s- q
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
1 `; G1 m4 z/ v+ l& \; o" l: ^5 ?cross_marquee.style.left=marqueewidth+8
  g* D: p9 Q/ U4 c$ T& }8 ~8 bcross_marquee.innerHTML=marqueecontent* g6 q) l9 ]' U" b) U
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth
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else if (document.layers){
; s9 ]# Y9 S' g1 w* T% Zns_marquee=document.ns_marquee.document.ns_marquee2% x+ k" O: Q: ?& r$ i. l- d
ns_marquee.left=marqueewidth+8
9 V/ c8 e% I/ u' [4 V" W0 Xns_marquee.document.write(marqueecontent)
# B& Z" N3 L* ?: p& d/ e) Ans_marquee.document.close()7 }2 n: t8 V* k/ x
actualwidth=ns_marquee.document.width
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" h. t# `# s& g9 ]. ~lefttime=setInterval("scrollmarquee()",20)
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window.onload=populate
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function scrollmarquee(){1 ~5 e6 s! I  u0 ?& j; l% \6 m
if (iedom){, B5 b/ r% s* j: E
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
: R5 X1 i! {  O2 k- O* X% z5 r& Mcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
7 L- ^7 s1 P% h$ [3 _4 ?2 I& @else
* H" t' Y8 @; N1 c( i: Ycross_marquee.style.left=marqueewidth+8
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else if (document.layers){# s! N4 z( I3 C. j  i" K
if (ns_marquee.left>(actualwidth*(-1)+8))! |( I7 C5 M. M
ns_marquee.left-=copyspeed  |* J+ |6 ^0 f4 V8 ]
else
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}
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if (iedom||document.layers){
( g' n# w& l' F0 `2 r/ ^with (document){% M- W& i7 n" U  d+ l( ^
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')* A: N( V7 F2 b
if (iedom){
7 r, _! {) b% V# E+ d0 O, k  Q4 Lwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
* y2 H) I2 E5 b6 d3 a/ Wwrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')5 h% o8 ]  k  {- T# L2 U
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')3 ~" f/ _) s7 E6 }7 A8 }5 x% k
write('</div>')& ^* o; V# d: Q( F& i1 B8 ]! m/ ]% a
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else if (document.layers){4 s- D* F: ^" {
write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')$ n6 ^  ~( H8 ^% I# F
write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
. X) M# O8 ?1 u  twrite('</ilayer>')
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+ \& r- g- A$ w2 X1 d, Udocument.write('</td></table>')
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