尝试

.removeAttr("checked")

As the title says, I can't get .attr('checked', false) to work on IE6. I am cloning some HTML and then before I assign the newly cloned HTML to a element, I run through it and un-check all of the checkboxes that are in the newly cloned section, which works fine in all browsers except IE 6.

Here is the code:

    //give each input and select a custom id
    clone.find('input, select').each( function( i ) {

            //get the id attribute
            var id = $(this).attr('id');

            //uncheck all of the tick boxes
            $(this).attr('checked', '');

            //get the name attribute
            var name = $(this).attr('name');

            $(this).attr('name', name+"_"+count)
            $(this).attr('id', id+"_"+count+"_"+i)

    });

    //append the newly created area to the area wrapper
    clone.appendTo('[data-custom="area_wrapper"]');

Is there any way that I can work around this problem?

Try

.removeAttr("checked")