function area_select(cat_id,area_id,obj,path){
	var url = (path ? path : "./") + 'area2select.php';
	if(area_id==0){
		var pars = 'cat='+cat_id;
	}else{
		var pars = 'cat='+cat_id+'&area='+area_id;
	}
	var myAjax = new Ajax.Updater(
		'area2_box', 
		url, 
		{
			method: 'get', 
			parameters: pars
		});
}

function allcheck(obj_name,obj){

	var obj1 = $(obj_name);
	var obj2  = obj1.getElementsByTagName('input');
	var max  = obj2.length;

	if(obj.checked==false){
		for(var i = 0; i < max; i++){
			if(obj2[i].disabled==false){
				obj2[i].checked = false;
			}
		}
	}else{
		for(var i = 0; i < max; i++){
			if(obj2[i].disabled==false){
				obj2[i].checked = true;
			}
		}
	}
}