$(document).ready(function(){
    var userMenuDisplayed = false;
    $('.mySettings').live('click',function(){
        if( userMenuDisplayed == true) {
            $('#toolMenu').attr('style', 'display:none'); 
            $('#mySettings').removeClass('settings_icon_over');   
            $('#mySettings').addClass('settings_icon');   
            userMenuDisplayed = false;    
        } else {
            $('#toolMenu').attr('style', 'display:block');    
            $('#mySettings').addClass('settings_icon_over');   
            $('#mySettings').removeClass('settings_icon');   
            userMenuDisplayed = true;    
        }
        return false;
    });

});