function highschool_click_handler(){ 	
    var clicked_id = $(this).attr('id');
    if(clicked_id == 'highschool_1') {
        // use classes here, because several browsers don't like hiding 'tr's. Use the class + cascading stylesheet to hide 'tr *'
        $('#which-high-school').removeClass("hidden");
    } else {
        $('#which-high-school').addClass("hidden");
    }
}

$(document).ready(function(){
        $("#highschool_1").click(highschool_click_handler);
        $("#highschool_0").click(highschool_click_handler);
    });