function SetDisplayLevel(level){
    var table = Ext.fly('u-results');
    var i;
	for(i = 1;i <= 3; i++){
		if(table.hasClass('u-level-'+i) && !table.hasClass('u-level-'+level)){
			table.replaceClass('u-level-'+i, 'u-level-'+level);
			break;	
		}
	}
	
	Ext.fly('u-level-1').removeClass('u-selected');
	Ext.fly('u-level-2').removeClass('u-selected');
	Ext.fly('u-level-3').removeClass('u-selected');
	Ext.fly('u-level-'+level).addClass('u-selected');
}
function SetDisplayColumns(cols){
	var prev = cols == 1 ? 2 : 1;	
	Ext.fly('u-results').replaceClass('u-results-'+prev, 'u-results-'+cols);
	
	Ext.fly('u-columns-1').removeClass('u-selected');
	Ext.fly('u-columns-2').removeClass('u-selected');
	Ext.fly('u-columns-'+cols).addClass('u-selected');
}