JQuery: empty a specific input box using jQuery

inputfields

function input_values()
	{	
		//First let's agree on which input we mean - the input-element in another element with the name "search"
		var inputBox = $('form#formname input, form#formname textarea');
		//Now this should be triggered when we give the input focus - not click!
		inputBox.focus(function(){
			theTemp = $(this).attr('temp'); //The temp value - if it exists
			var theValue = $(this).val(); //The value of the input
			//Now either the temp value is undefined (first time) or the temp and value are the same - 'Search' in any given language
			if(theTemp == undefined || theTemp == theValue){
				$(this).attr('temp', theValue); //Set the temp to the same as value
				$(this).val(''); //Empty the value attribute to allow typing
			}
			//See, if the value is NOT equal to the temp value and the temp value is NOT undefined, it means the user has typed something. Let them keep it.
		});
		//Finally people will click outside the box which removes the focus
		inputBox.blur(function(){
			//if the box is empty - let's populate the value with our saved standard text in the temp attribute
			if ($(this).val() == "") {
				var theValue = $(this).attr('temp');
				$(this).val(theValue);
			} 
			//nothing else - if the user has typed something, let them keep it
		});
	}
input_values(); //Let's run this bad-boy