// JavaScript Document
function $(ni){return document.getElementById(ni);}

function m1_chg(wc_m1){
	
	for (var i =1; i<=7; i++){
		$('wc_m1_title_item'+i).className = "wc_m1_title_item_normal";
	}
	wc_m1.className = "wc_m1_title_item_current";
}
function m2_chg(wc_m2){
	
	for (var i =1; i<=5; i++){
		$('wc_m2_title_item'+i).className = "wc_m2_title_item_normal";
	}
	wc_m2.className = "wc_m2_title_item_current";
}
function m3_chg(args){
	var oP = args.parentNode.parentNode;
	var oCx1 = oP.getElementsByTagName('div');
	for (var i=0; i< oCx1.length; i++){
		var oCx2 = oCx1[i].getElementsByTagName('img')[0];
		if (oCx2.src.indexOf('_bg')>0){
			oCx2.src = oCx2.src.replace('_bg','');
		}
	}
	args.getElementsByTagName('img')[0].src = args.getElementsByTagName('img')[0].src.replace('.gif','_bg.gif');
}