// сообщение об ошибке в тексте
d = window.document;
d.onkeypress = catchKey;

function catchKey (event) {
    if (window.event)
        event = window.event;
    if (event.ctrlKey && event.keyCode == 13 || event.keyCode == 10) {
        if(d.getSelection || d.selection.createRange().text){
           if(d.getSelection && !d.getSelection().length) return;
            window.open("/send_error/","SendError","width=450,height=260");
        }
    }
}