// show tab
function show_tab(curobj){
	tabs = new Array('month1','month2','month3','month4','month5','month6','month7','month8','month9','month10','month11','month12');

	
parent.document.getElementById("tbl_mid").style.height = '614px';
parent.document.getElementById("tbl_main_cal").style.height = 0;
parent.document.getElementById("tbl_main_cal_bg").style.height = 0;

	
	e = '';
	ns6 = document.getElementById&&!document.all?1:0;
	

  	for (var i=0; i<tabs.length; i++){
    	el = tabs[i];
		e = ns6?document.getElementById(el).style:document.all[el].style;
	

		if (el == curobj){
			e.display = "";
			document.getElementById(tabs[i]+'_tab').className = "td_month sel_td_month";
		} else {
			e.display = "none";
			document.getElementById(tabs[i]+'_tab').className = "td_month";
		}
	}
}