// JavaScript Document
function setover(obj) {
    obj.style['opacity'] = 0.7;
    obj.style['filter'] = 'alpha(opacity=70)';
}
function setout(obj) {
    obj.style['opacity'] = 1;
    obj.style['filter'] = 'alpha(opacity=100)';
}


// ²à±ßÀ¸
function showCate(index){
	var se='second'+index;
	var side='side_a'+index;
	if(document.getElementById(se).style.display=='none'){
		document.getElementById(se).style.display='block';
		document.getElementById(side).className='cate_one';
		}
		else{
			document.getElementById(se).style.display='none';
			document.getElementById(side).className='cate_two';
			}
	}