Switched to namespaced events. Rewrote/optimized some other stuff too…

…. Much ♥ to Sean Koole and temp01!

jquery.placeholder.js

@@ -1,78 +1,79 @@
 /*!
- * HTML5 Placeholder jQuery Plugin v1.4
+ * HTML5 Placeholder jQuery Plugin v1.5
  * @link http://github.com/mathiasbynens/Placeholder-jQuery-Plugin
  * @author Mathias Bynens <http://mathiasbynens.be/>
  */
 ;(function($) {
- $.fn.placeholder = function() {
-  // Quit if there’s support for HTML5 placeholder
-  if (this[0] && 'placeholder' in document.createElement('input')) {
-   // Allow chaining
-   return this;
-  }
-  function args($elem) {
-   // Get attributes string from outerHTML
-   var html = $('<div>').append($elem.clone()).html().replace(/<(\w+)\s+(.*)>/, '$2'),
-       attr,
-       attrs = {};
-   while ((attr = html.match(/\s*([\w-]+)=("[^"]*"|'[^']*'|\w+)/))) {
-    // Assign attribute to dictionary, but remove quotes first
-    attrs[attr[1]] = attr[2].replace(/^(["'])(.*?)\1$/, '$2');
-    html = html.replace(attr[0], '');
-   }
-   return attrs;
-  }
-  function onFocus() {
-   var $input = $(this);
-   if ($input.val() === $input.attr('placeholder') && $input.hasClass('placeholder')) {
-    if ($input.data('placeholder-password')) {
-     $input.next().show().focus().end().remove();
-    } else {
-     $input.val('').removeClass('placeholder');
-    }
-   }
-  }
-  // Made this a function, because we actually need it on two different occasions:
-  // 1) Once when the DOM is loaded;
-  // 2) Once every time the focusout() is triggered.
-  function setPlaceholder($elem) {
-   var $replacement;
-   if ($elem.val() === '' || $elem.val() === $elem.attr('placeholder')) {
-    if ($elem.is(':password')) {
-     try {
-      $replacement = $elem.clone().attr({ type: 'text' });
-     } catch(e) {
-      $replacement = $('<input>', $.extend(args($elem), { type: 'text' }));
-     }
-     $replacement.data('placeholder-password', true).focus(onFocus);
-     $elem.hide().before($replacement);
-     $elem = $replacement;
-    }
-    $elem.addClass('placeholder').val($elem.attr('placeholder'));
-   } else {
-    $elem.removeClass('placeholder');
-   }
-  }
-  // Look for forms with inputs and/or textareas with a placeholder attribute in them
-  $('form:has([placeholder])').submit(function() {
-   // Clear the placeholder values so they don’t get submitted
-   $('.placeholder', this).val('');
-  });
-  // Clear placeholder values upon page reload
-  $(window).unload(function() {
-   $('.placeholder').val('');
-  });
-  // Yes, .each() — in case .placeholder() is called on several elements, which is very likely, e.g. $('input').placeholder();
-  return this.each(function() {
-   var $input = $(this);
-   // Quit if the current element doesn’t have a placeholder attribute, or is not an input/textarea at all
-   if (!$input.attr('placeholder') || !$input.is(':input')) {
-    return;
-   }
-   setPlaceholder($input);
-   $input.focus(onFocus).blur(function() {
-    setPlaceholder($input);
-   });
-  });
- };
+
+	function args($elem) {
+		// Get attributes string from outerHTML
+		var html = $('<div>').append($elem.clone()).html().replace(/<(\w+)\s+(.*)>/, '$2'),
+		    attr,
+		    attrs = {};
+		while ((attr = html.match(/\s*([\w\-]+)=("[^"]*"|'[^']*'|\w+)/))) {
+			// Assign attribute to dictionary, but remove quotes first
+			attrs[attr[1]] = attr[2].replace(/^(["'])(.*?)\1$/, '$2');
+			html = html.replace(attr[0], '');
+		}
+		return attrs;
+	}
+
+	function onFocus() {
+		var $input = $(this);
+		if ($input.val() === $input.attr('placeholder') && $input.hasClass('placeholder')) {
+			if ($input.data('placeholder-password')) {
+				$input.next().show().focus().end().remove();
+			} else {
+				$input.val('').removeClass('placeholder');
+			}
+		}
+	}
+
+	// Made this a function, because we actually need it on two different occasions:
+	// 1) Once when the DOM is loaded;
+	// 2) Once every time the focusout() is triggered.
+	function setPlaceholder(elem) {
+		var $replacement,
+		    $elem = $(this);
+		if ($elem.val() === '' || $elem.val() === $elem.attr('placeholder')) {
+			if ($elem.is(':password')) {
+				try {
+					$replacement = $elem.clone().attr({ type: 'text' });
+				} catch(e) {
+					$replacement = $('<input>', $.extend(args($elem), { type: 'text' }));
+				}
+				$replacement.data('placeholder-password', true).bind('focus.placeholder', onFocus);
+				$elem.hide().before($replacement);
+				$elem = $replacement;
+			}
+			$elem.addClass('placeholder').val($elem.attr('placeholder'));
+		} else {
+			$elem.removeClass('placeholder');
+		}
+	}
+
+	// Look for forms
+	$('form').bind('submit.placeholder', function() {
+		// Clear the placeholder values so they don’t get submitted
+		$('.placeholder', this).val('');
+	});
+
+	// Clear placeholder values upon page reload
+	$(window).bind('unload.placeholder', function() {
+		$('.placeholder').val('');
+	});
+
+	if ('placeholder' in document.createElement('input')) {
+		$.fn.placeholder = function() {
+			return this;
+		};
+	} else {
+		$.fn.placeholder = function() {
+			return this.filter(':input[placeholder]').bind({
+				'focus.placeholder': onFocus,
+				'blur.placeholder': setPlaceholder
+			}).trigger('blur.placeholder').end();
+		};
+	}
+
 })(jQuery);