function GetGrid(url,params){
		var m = $('calendar_m').value;
		var y = $('calendar_y').value;
		
		var param = 'ajax=yes&name=Calendar&grid=only&simple=no&m='+m+'&yy='+y+'&'+params;
		var AjaxForm = new Ajax.Request(url,{
			method:'post',
			parameters: param,
			onComplete: SetGrid
		});
	}
	
	function SetGrid(req){
		var text = req.responseText;
		if(text){
			$('calendar_g').innerHTML = text;
		}
	}
	
	function ShowMonth(cat){
		var m = $('calendar_m').value;
		var y  = $('calendar_y').value;
		location.href = location.protocol+'//'+document.domain+'/m.'+m+'/yy.'+y+'/cat.'+cat+'/t.31/';
	}