网页之跑马灯文字特效

zw2004

//修改宽度
* J7 R$ r) Y% |9 i8 @) Y, s! O% bvar marqueewidth=300- Z. K+ w4 S  B' z2 G& _' N
//高度' ~+ Q% h3 R+ E3 r' _, H- k
var marqueeheight=258 m. J; i. L& S, N* B  x+ F8 m
//速度(1-10)- G0 b' {3 H- h# F
var marqueespeed=3
& T3 o, \: b& Z% w" Y6 A5 N5 f! f* I//背景颜色
# H: |6 b0 d. ]var marqueebgcolor="#FFFFFF"
! R8 m$ A# W  X8 B) }1 c- D//是否能暂停 (0=no. 1=yes)?
+ q1 L# l: {; `5 q6 J& Fvar pauseit=1
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//修改显示内容! E  F3 g3 h2 W% a- ^% u
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>'$ P/ _$ u" j& o: W
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& L& ]# i$ N& W* d9 Q////下面不需改变////////////) C7 S, W# I' q1 t+ ^6 U% `( ?

2 O( {$ {. P# v: b1 L4 M3 K& Pvar copyspeed=marqueespeed; f/ Z' i5 h" K& `; F. ], o6 e
var pausespeed=(pauseit==0)? copyspeed: 0
8 R* H- z& O$ rvar iedom=document.all||document.getElementById
' ?5 s8 i  s" T9 Q5 Zif (iedom)
4 ^/ Y0 c2 J( q1 ^document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')
4 D5 E0 y! X. a+ Y/ Xvar actualwidth=''+ ^* ]2 N$ C2 L$ m
var cross_marquee, ns_marquee& H& t/ k( ^* u; a4 p3 L- u

4 C* @$ J8 G2 m- ~function populate(){% `" z0 R7 Z* w# D; [
if (iedom){
/ H; s& @( j4 S+ o$ J& _" D' Fcross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
) b4 W% Q' E! E5 |$ z0 lcross_marquee.style.left=marqueewidth+8
5 O3 ]" `( n  b+ Wcross_marquee.innerHTML=marqueecontent
% Q% W* D5 @$ c, Tactualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth% r4 n# |+ T- \+ E) e8 @
}# j4 j- Z2 [$ A4 t; ?
else if (document.layers){
$ x6 C# \! B0 w3 R9 g3 K# gns_marquee=document.ns_marquee.document.ns_marquee2
" O# ?9 C0 i# h7 ans_marquee.left=marqueewidth+8& r& ]4 S% Q' X* \2 u
ns_marquee.document.write(marqueecontent)% Z/ l' J% m: c' F+ b" m' b+ {
ns_marquee.document.close()
2 t/ ^6 B5 O* nactualwidth=ns_marquee.document.width/ `  S) V5 a" ~! \
}
2 E9 B& P  Q5 U/ d# Hlefttime=setInterval("scrollmarquee()",20)
' R0 ~3 [; }3 X5 d8 q. y}
5 i! [: W8 M1 }window.onload=populate& V! j# w) o$ s, W0 Q3 m. u

6 j# Q6 \. f& p! ]- B* pfunction scrollmarquee(){8 Y- N5 J; [' f2 b% Z( I6 R
if (iedom){# t* T% ~" T8 v! D
if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))  a5 J- w/ n1 F3 k9 ^
cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed
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cross_marquee.style.left=marqueewidth+8
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else if (document.layers){
. C4 o" l) B' H+ `if (ns_marquee.left>(actualwidth*(-1)+8))
# C2 c6 A7 |& y6 |ns_marquee.left-=copyspeed; F/ Q+ ?2 _2 b6 b: x- W8 J
else
2 i) N- {8 K( d+ {3 g4 ins_marquee.left=marqueewidth+8: R4 R1 z. C' Z/ T
}
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if (iedom||document.layers){
* _+ c6 \* l: @! G4 Zwith (document){
; q7 M3 M! `% c  D/ V+ [" idocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')/ f3 s6 |2 C! L2 M4 y
if (iedom){
. r: N; N' e4 s0 K6 Hwrite('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')' a+ @5 r0 l' I
write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
- r" {8 Z) ^& c9 X/ x. M% ywrite('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
, @2 t- A( @/ y0 B& ~7 D- J' _write('</div>')
+ m- u" ~/ ~' D) ^}
  y3 }+ t7 J, Z) Y* Welse if (document.layers){
# Z. r" P3 \  d* Q9 a4 p7 {3 x' xwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
  |. t- F  }" C; Z9 dwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
* ~' r6 N% s+ s9 u! H$ V  [. ]write('</ilayer>')
" I3 Y* f- B& J; k" w9 @9 s( v}
2 n0 j, C2 l6 c/ ^+ r: J# c6 ~document.write('</td></table>')
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