//do this task when the DOM is loaded
$(document).ready(function() {

    // Watch all div in document (you can do the same for table tags)
    $('div').each(function(index) {

        //Is there a corner attribute in the current div tag ?
        var attr = $(this).attr('corner');

        //if current div has attribute corner , get the value
        if (typeof attr !== 'undefined' && attr !== false) {
            //get current div id
            var cur_id = $(this).attr('id');

            //get the value : style to apply
            var cur_value = $(this).attr('corner');

            //set property value
            $('#' + cur_id).corner(cur_value);

        }
    });

});