jQuery - Form's Inline Label

jquery-form-inline-label.js

//http://www.narga.net/making-awesome-forms-inline-labels-with-jquery
$(document).ready(function() {
	$.fn.setCursorPosition = function(pos) {
		if ($(this).get(0).setSelectionRange) {
			$(this).get(0).setSelectionRange(pos, pos);
		} else if ($(this).get(0).createTextRange) {
		var range = $(this).get(0).createTextRange();
		range.collapse(true);
		range.moveEnd('character', pos);
		range.moveStart('character', pos);
		range.select();
		}
	}
    $("#signup label").each(function (i) {
        $(this).next("input").attr("value",$(this).html()+"..."
        $(this).hide();
    });
    $("#signup input").focus(function() {
        if($(this).prev("label").html()+"..." == this.value){
            $(this).addClass("focus").setCursorPosition(0);
        }
    });
    $("#signup input").keypress(function() {
        if($(this).prev("label").html()+"..." == this.value){
            this.value = "";
            $(this).removeClass("focus").addClass("typing"
        }
    });
    $("#signup input").blur(function() {
		$(this).removeClass("focus").removeClass("typing"
		if(this.value == ""){
		this.value = $(this).prev("label").html()+"...";
		}
    });
});