function select_row(row_id){
	var current_class = document.getElementById('row_'+row_id).className;

	if(current_class == 'storeCat_off'){
		document.getElementById('row_'+row_id).className = 'selected';
	}
	else {
		document.getElementById('row_'+row_id).className = 'storeCat_off';
	}
}