// Sticky footer
$(window).bind("load", function() { 

       var footerHeight = 0,
           footerTop = 0,
           $footer = $("#footer");

       positionFooter();

       function positionFooter() {

                footerHeight = $footer.height();
                footerTop = ($(window).scrollTop()+$(window).height()-footerHeight)+"px";

               if ( ($(document.body).height()+footerHeight) < $(window).height()) {
                   $footer.css({
                        position: "absolute"
                   }).animate({
                        top: footerTop
                   })
               } else {
                   $footer.css({
                        position: "static"
                   })
               }

       }

       $(window)
               .scroll(positionFooter)
               .resize(positionFooter)

});

$(document).ready(function(){

	// external links
	$("a[rel='external']").addClass("external").attr('title', function() { return this.title + ' (Opens in New Window)' }).click(function() { window.open(this.href); return false; });

	// remove margin on last steps nav item
	$(".steps_nav li:last-child, .wrapper .col_left .gallery img:nth-child(2n), .service_snippet:last-child, .ngg-gallery-thumbnail-box:nth-child(2n)").addClass("noMargin");
	
	// last element
	$("ul#product_list li:nth-child(2n)").addClass("lastChild");
	
	// place labels inside input boxes
	$("input").labelify();

});

/**
 * jQuery.labelify - Display in-textbox hints
**/
jQuery.fn.labelify = function(settings) {
  settings = jQuery.extend({
    text: "title",
    labelledClass: ""
  }, settings);
  var lookups = {
    title: function(input) {
      return $(input).attr("title");
    },
    label: function(input) {
      return $("label[for=" + input.id +"]").text();
    }
  };
  var lookup;
  var jQuery_labellified_elements = $(this);
  return $(this).each(function() {
    if (typeof settings.text === "string") {
      lookup = lookups[settings.text]; // what if not there?
    } else {
      lookup = settings.text; // what if not a fn?
    };
    // bail if lookup isn't a function or if it returns undefined
    if (typeof lookup !== "function") { return; }
    var lookupval = lookup(this);
    if (!lookupval) { return; }

    // need to strip newlines because the browser strips them
    // if you set textbox.value to a string containing them    
    $(this).data("label",lookup(this).replace(/\n/g,''));
    $(this).focus(function() {
      if (this.value === $(this).data("label")) {
        this.value = this.defaultValue;
        $(this).removeClass(settings.labelledClass);
      }
    }).blur(function(){
      if (this.value === this.defaultValue) {
        this.value = $(this).data("label");
        $(this).addClass(settings.labelledClass);
      }
    });
    
    var removeValuesOnExit = function() {
      jQuery_labellified_elements.each(function(){
        if (this.value === $(this).data("label")) {
          this.value = this.defaultValue;
          $(this).removeClass(settings.labelledClass);
        }
      })
    };
    
    $(this).parents("form").submit(removeValuesOnExit);
    $(window).unload(removeValuesOnExit);
    
    if (this.value !== this.defaultValue) {
      // user already started typing; don't overwrite their work!
      return;
    }
    // actually set the value
    this.value = $(this).data("label");
    $(this).addClass(settings.labelledClass);

  });
};