$('#ajax-modal').html('<%= escape_javascript(render :partial => 'projects/new_join', locals: { :course => @course}) %>');
showModal('ajax-modal', '500px');
$('#ajax-modal').css('height','100px');
$('#ajax-modal').siblings().remove();
$('#ajax-modal').before("" +
"");
$('#ajax-modal').parent().css("top","").css("left","");
$('#ajax-modal').parent().addClass("anonymos");