var userData = {
		
	checkEmail : function (email) {
		Obj = new Ajax();
		Obj.onLoad = function () { __O('email').innerHTML = Obj.responseText; }
		Obj.sendGet('./ajax/checkEmail.php?email=' + escape(email));
		},

	selectCategory : function (categID, categName) {
		__O('category').innerHTML = categName;
	
		var form = __O('userdata');
		var input = document.createElement('input');
			input.type = 'hidden';
			input.name = 'category';
			input.value = categID;
			form.appendChild(input);	
		}
	}