function tabChg(num){
	var tabNum = num;
	var tabBox = new Array();
	var tabRec = new Array();
	for(var i = 0 ;  i < 6 ; i++){
	tabBox[i] = document.getElementById("boxRecommend" + i);
	tabBox[i].style.display = 'none';
	tabRec[i] = document.getElementById("tabRec" + i);
	tabRec[i].className = 'tabDef';
	}
	document.getElementById('boxRecommend' + tabNum ).style.display = 'block';
	document.getElementById('tabRec' + tabNum ).className = 'tabSelect';
}