function ForumTextSize(size){
	
	for(i=1; i <= 3; i++){
		$('mainframe').removeClassName('forummainframe'+i);		
	}	
		
	var showResponse = function (originalRequest) {
		$('mainframe').addClassName('forummainframe'+size);
				
	};
	var params = 'size='+size;
	var url = "http://www.femalenetwork.com/lib/forumtextsizer.xml.php";
	var myAjax = new Ajax.Request( url,	{method: 'get', parameters: params, onComplete: showResponse});
}