IE 7 and IE8 do not support the placeholder.

[[email protected]…]

Some browsers do not have support in some placeholder inputs. This function allows you to add functionality. Add this function to jquery:

jQuery.fn.extend({

placeholder: function(strText){ $(this).focus(function(e){

$(this).val();

}); $(this).blur(function(e){

if($.trim($(this).val()) == ){

$(this).val(strText);

}

}); if($.trim($(this).val()) == ){

$(this).val(strText); }

}

});

[ajpiano]

Hi and thanks for your interest in contributing to the jQuery project. However, this proposal is outside of the scope of jQuery core and is much better suited for a plugin. There are a variety of HTML5 input attributes that are not supported in oldIE; polyfills for these behaviours, as well as the general category of reusable UI controls, are not the types of features that will be considered for inclusion in jQuery core.

[axl.jq]

There are already plugins for that task, as it's not that simple, so IMO it's not something to add to jQuery core.