网页之跑马灯文字特效

zw2004

//修改宽度+ {" H. h0 I2 L/ o! G
var marqueewidth=300
# N% V1 M8 k) q- O7 E& x* Y//高度2 ^  X, O  E6 S+ F
var marqueeheight=25
5 @7 K' a7 M/ B: X& \//速度(1-10)
3 j% r% u& j- n# w2 y. mvar marqueespeed=3( h9 @; |# G: b* x3 n
//背景颜色  M8 `6 a3 s. M0 @: H
var marqueebgcolor="#FFFFFF"
2 w1 z7 M! y2 G9 y9 O2 F//是否能暂停 (0=no. 1=yes)?  T; `. d, R' n. z( T, u9 m9 X
var pauseit=1+ m& h! t  h+ V1 [) C+ Q7 U% z: U' c# e5 o

: J2 U5 B, O! @6 C- a. Y//修改显示内容
" q, b8 Y* b$ g" gvar 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>'
" N9 V9 C! `# w: M7 [# Y0 l6 ~. B/ L, f
8 [& z! x6 \+ I3 E1 N, Q
////下面不需改变////////////$ \- }9 [8 }; a4 m  J

9 m/ Q+ O1 y; w' }var copyspeed=marqueespeed6 D  L, m3 `& t# F
var pausespeed=(pauseit==0)? copyspeed: 0
3 j. h9 O& S+ k8 vvar iedom=document.all||document.getElementById; g/ D* d3 E/ _8 J, O
if (iedom)
5 v8 @1 c' y* ]3 A; Y/ `, h! Cdocument.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-1000">'+marqueecontent+'</span>')0 r9 {$ P( _1 }( ?6 }
var actualwidth='') T- T: n" D& d( M+ E0 H
var cross_marquee, ns_marquee
" r4 c1 R6 c3 Z! q; h  X- \& j% T# U3 v# |
function populate(){0 [! A: ?- K' ]1 w
if (iedom){$ p8 R3 P3 y$ T- m, k1 ^% ~
cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee% d5 Q' z, d: V6 V2 c0 T& O9 z
cross_marquee.style.left=marqueewidth+8
( C- B: i3 c- Mcross_marquee.innerHTML=marqueecontent+ {5 `2 T* m3 Y) H% Y# \
actualwidth=document.all? cross_marquee.offsetWidth : document.getElementById("temp").offsetWidth& D. D$ |1 n6 h, r% c4 |  M8 X
}9 b4 ?- J$ E' h: [2 T4 k0 N# R" ]
else if (document.layers){
1 V  A: P) v% _6 ]ns_marquee=document.ns_marquee.document.ns_marquee2
1 s  v# i" _, T" Qns_marquee.left=marqueewidth+8
  I5 C; z2 |8 d) ^" @* v- Zns_marquee.document.write(marqueecontent)& b: Y' u4 _, B9 {( r% e& g
ns_marquee.document.close()
/ N5 ]8 z" |; f% u7 H' Q# P( uactualwidth=ns_marquee.document.width
/ N# L3 t5 l' m3 V8 ?+ O" L}( J/ ?; N8 F8 n4 R8 c8 \
lefttime=setInterval("scrollmarquee()",20)
" l% }8 x) ^- B3 d* ?; L: r}1 F/ v4 j7 B8 `, v% j
window.onload=populate) v3 Y& g( ^: a/ z- L# ^

( a8 Z$ p4 Q+ Kfunction scrollmarquee(){
- G7 u4 r( W- W$ [3 C/ K, Q2 s: P* ~if (iedom){
% ?( |( Y/ Z" W0 \; l( H, hif (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
: f& H0 b- t& A- }) pcross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed, N8 P/ D  y/ h  @
else1 K, e# c+ \: U- \/ i
cross_marquee.style.left=marqueewidth+8
6 y# A; Z0 T, L, i( r) e% ^+ L* T' T! Z; C
}
" F- E' |: k4 X. Melse if (document.layers){
9 M' s1 F0 E0 v  `) P/ _. g/ h- R% Cif (ns_marquee.left>(actualwidth*(-1)+8))
7 D! r" z8 k4 F* z! f/ Nns_marquee.left-=copyspeed
$ W0 |$ I' R" V1 b' [' y9 f3 g% melse& v! v' P5 ^$ \
ns_marquee.left=marqueewidth+8  [1 ]. G# c2 p1 k( `
}
* e7 [! \' ?: l9 b7 O( H}
4 J8 L( Z' g% ~( h5 Q7 }: `$ o2 ~$ @5 P6 z3 T0 l; l- W
if (iedom||document.layers){
9 b$ K! `+ E2 {  m& w6 P3 @- K! [) gwith (document){
& h/ b4 E4 w3 g1 ~: B' wdocument.write('<table border="0" cellspacing="0" cellpadding="0"><td>')  w2 f0 l' \0 z8 i' x4 _' T
if (iedom){9 V& b. m3 m8 T; r& |+ g2 a: y5 j
write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
+ ^* r& K' X" d* _& ywrite('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')( v- b2 G: ]1 ^9 Y) R
write('<div id="iemarquee" style="position:absolute;left:0;top:0"></div>')
' L# M) v9 u/ R1 V( Q9 p$ iwrite('</div>')5 A  d! g6 D  ]: F' P
}
: G0 g% ?" ], P$ r7 K) I& k. _else if (document.layers){
$ X3 y9 T* ?* S- ^5 xwrite('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
5 r7 J* r  m/ V5 D& Cwrite('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')8 s0 e. @% A9 ~  ]9 q) M: Y; q0 b
write('</ilayer>')
8 w3 h" q6 T$ s) _: Z}6 E9 W. J! ]- ^: j. W* W0 ^" X3 G
document.write('</td></table>')
6 z: G7 k5 S5 K3 }. W4 e}: ^, ]. L& J/ B4 u3 @/ M% K3 V
}5 l: o6 G% j1 G( N4 E+ h
</script>