js隨機調用代碼

 <script>
 var sydl=0;
 var coupletTop = 120;
 var rdmdl=Math.floor(Math.random()*3)+1;
if(rdmdl==1)
{
 var coupletLeftUrl = 'http://img1.126.net/channel5/011092/jp20300_120105.swf';
 var coupletRightUrl = 'http://img1.126.net/channel5/011092/jp20300_120105.swf';
 var coupletLeftUrlb = 'http://img1.126.net/channel5/011092/jp110300l_120106.swf';
 var coupletRightUrlb = 'http://img1.126.net/channel5/011092/jp110300r_120105.swf';
 var sydl=1;
}
if(rdmdl==2)
{
 var coupletLeftUrl = 'http://img1.126.net/channel12/011092/20300_l0106mw0109.swf';
 var coupletRightUrl = 'http://img1.126.net/channel12/011092/20300_r0106mw0109.swf';
 var coupletLeftUrlb = 'http://img1.126.net/channel5/011092/mai110300la_120110.swf';
 var coupletRightUrlb = 'http://img1.126.net/channel5/011092/mai110300ra_120110.swf';
 var sydl=1;
}
if(rdmdl==3)
{
 var coupletLeftUrl = 'http://img1.126.net/channel12/011090/20300_l0106mw.swf';
 var coupletRightUrl = 'http://img1.126.net/channel12/011090/20300_r0106mw.swf';
 var coupletLeftUrlb = 'http://img1.126.net/channel5/011090/m110300la_120110.swf';
 var coupletRightUrlb = 'http://img1.126.net/channel5/011090/m110300ra_120110.swf';
 var sydl=1;
}
if(sydl==1)
{
document.write('<scr'+'ipt type="text/javascript" src="http://img1.126.net/channel7/js/duilian_2011n.js"></scr'+'ipt>');
}
</script>