form-values.js

YUI.add("form-values", function(Y){
	
	var _form,
	    _values
	    ;
	
	Y.Form = {
			
		setForm : function(selector) {
			if(selector !== null) {
				var node = Y.one(selector);
				if(node && node.get('nodeName').toLowerCase() === 'form') {
					_form = node;
					return _form;
				}
			}
			_form = null;
			return _form;
		},
		
		getForm : function() {
			return _form;
		},
		
		getFormValues : function(){
			return this._setFormValues();
		},
		
		_setFormValues : function(){
			_values = {};
			
			var f = this.getForm();
			if(f !== null) {
				f.get('elements').each(function(field){
					var type = field.get('nodeName') + ':' + (field.get('type') || ''),
					    name = field.get('name'),
					    value;
					
					switch (type.toLowerCase()) {
						case 'input:text'   : // fall through intentional
						case 'input:hidden' :
						case 'textarea:'    :
						case 'select:'      :
							value = field.get('value');
							break;
						case 'input:radio'    : // fall through intentional
						case 'input:checkbox' :
							value = field.get('checked') ? field.get('value') : undefined;
							break;
					}
					
					if(value !== undefined) {
						if (name in _values) {
							if(!Y.Lang.isArray(_values[name])) {
								_values[name] = [_values[name]];
							}
							_values[name].push(value);
						}else{
							_values[name] = value;
						}
					}
				});
			}
			
			return _values;
		}

	};
		
	    
}, '0.1', {requires : ['node']});