//menu
$(document).ready(function(){
  
  $('li.mainlevel').mousemove(function(){
  $(this).find('ul').slideDown();//you can give it a speed
  });
  $('li.mainlevel').mouseleave(function(){
  $(this).find('ul').slideUp("fast");
  });
  
});

$(function(){
	new slide("#main-slide","cur",258,195,1);//焦点图
})

function g(o){return document.getElementById(o);}
function HoverLi(n){
//如果有N个标签,就将i<=N;
for(var i=1;i<=4;i++){g('tb_'+i).className='normaltab';g('tbc_0'+i).className='undis';}g('tbc_0'+n).className='dis';g('tb_'+n).className='hovertab';
}
//如果要做成点击后再转到请将<li>中的onmouseover 改成 onclick;
//]]>