I have one question and one problem.

Problem

Safari fails when selecting multiple selectors|elements from variables that have not been attached to the DOM. Other browsers work just fine.

<div id="output"/>

var q = $( "<p/>" ).append(
		$( "<div/>" ).attr({"class": "input1", "id": "inputId1" }),
		$( "<div/>" ).attr({ "class": "input2", "id": "inputId2" }),
		$( "<div/>" ).attr({ "class": "input3", "id": "inputId3" })
	);

//The follow does not work in safari.
	$( ".input1, .input2, .input3", q ).html( "classes were found and..." );
	$( "#output" ).html( q.html() );
	$( "#inputId1, #inputId2, #inputId3" ).each(function( i, e ){
		$( e ).html("ids were found.");
		alert("Change");
	});

Question

Does a plus in front of a variable do something special in javascript or is it there for a reminder or something?

Example. In jQuery 1.3.2 in the function eq, it has +i.

eq: function( i ) {
return this.slice( i, +i + 1 );
},

It's also in the now function. With return +new Date;

Thank you for your help.