enopanen

<!-- jQuery: Validating an email. -->
$('#txtEmail').blur(function(e) {
            var sEmail = $('#txtEmail').val();
            if ($.trim(sEmail).length == 0) {
                alert('Please enter valid email address');
                e.preventDefault();
            }        
            var filter = /^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]
                             {2,4}|[0-9]{1,3})(\]?)$/;        
            if (filter.test(sEmail)) {

enopanen

$("div#home").prev("div"); // find the div previous in relation to the current div
$("div#home").next("ul"); // find the next ul element after the current div
$("div#home").parent(); // returns the parent container element of the current div
$("div#home").children("p"); // returns only the paragraphs found inside the current div

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$("p").click(function () {
  var htmlstring = $(this).html(); // obtain html string from paragraph
  $(this).text(htmlstring); // overwrite paragraph text with new string value
});
	
var value1 = $('input#username').val(); // textfield input value
var value2 = $('input:checkbox:checked').val(); // get the value from a checked checkbox
var value3 = $('input:radio[name=bar]:checked').val(); // get the value from a set of radio buttons

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var alink = $("a#user").attr("href"); // obtain href attribute value
$("a#user").attr("href", "http://www.google.com/"); // set the href attribute to a new value
$("a#user").attr({
  alt: "the classiest search engine",
  href: "http://www.google.com/"
}); // set more than one attribute to new values

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var sometext = "here is more HTML";
$("p#text1").append(sometext); // added after
$("p#text1").prepend(sometext); // added before

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var maxheight = 0;
$("div.col").each(function(){
  if($(this).height() > maxheight) { maxheight = $(this).height(); }
});

$("div.col").height(maxheight);

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$('input').keydown(function(e) {
  // variable e contains keystroke data
  // only accessible with .keydown()
  if(e.which == 11) {
     e.preventDefault();
  }
});

$('input').keyup(function(event) {
  // run other event codes here							  

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$("#content").load("somefile.html", function(response, status, xhr) {
  // error handling
  if(status == "error") {
    $("#content").html("An error occured: " + xhr.status + " " + xhr.statusText);
  }
});

enopanen

$("a.register").on("click", function(e){
  $("#signup").fadeToggle(750, "linear");
});

enopanen

$('nav a').toggleClass('selected');