var ClassFormulaire = Class.create({
		_form:null,
		initialize: function(element) {	
			this._form = $(element);
			var buttons = this._form.getInputs('text');
			for(var  i =0; i<buttons.length;i++){
				buttons[i].observe('focus', function(event){ Event.element(event).value="" }); 
				buttons[i].observe('blur', function(event){
					var input =Event.element(event);
					 if(input.value==""){input.value=input.defaultValue};
					
				}); 
				if(buttons[i].defaultValue==""){
						buttons[i].defaultValue = this.gettextLabel(buttons[i].id);
				}
			}
			var buttons = this._form.getInputs('password');
			for(var  i =0; i<buttons.length;i++){
				buttons[i].observe('focus', function(event){ Event.element(event).value="" }); 
				buttons[i].observe('blur', function(event){
					var input =Event.element(event);
					 if(input.value==""){input.value=input.defaultValue};
				}); 
				if(buttons[i].defaultValue==""){
						buttons[i].defaultValue = this.gettextLabel(buttons[i].id);
				}
			}
		},
		gettextLabel : function(id){
			var result  = "";
			var label = this._form.getElementsBySelector('label');
			for(var  i =0; i<label.length;i++){
				//alert(label[i].htmlFor+"/"+id)
				if(label[i].htmlFor == id){
					if(label[i].firstChild.nodeValue){
						result=label[i].firstChild.nodeValue;
					}
					break;
				}
			}
			return result;
		}
});