function pngFix(f){
	var dir;
	switch(f){
	case "top": dir = 'common/';break;
	case 2: dir = '../common/';break;
	default: return false;
	}
	pngFixAll(dir);
}
function pngFixAll(dir){
	IEPNGFIX.hover(document.getElementById('mn_concept'), dir+'images/mn_concept_f2.png');
	IEPNGFIX.hover(document.getElementById('mn_menu'), dir+'images/mn_menu_f2.png');
	IEPNGFIX.hover(document.getElementById('mn_information'), dir+'images/mn_information_f2.png');
	IEPNGFIX.hover(document.getElementById('mn_party'), dir+'images/mn_party_f2.png');
	IEPNGFIX.hover(document.getElementById('mn_recommend'), dir+'images/mn_recommend_f2.png');
	IEPNGFIX.hover(document.getElementById('mn_access'), dir+'images/mn_access_f2.png');
}
function pngFixTop(dir){
}