Графики на Рельсах - Флажок

//For single key: Short cut key for 'Z'
document.onkeypress = function (e) {
    var evt = window.event || e;
    switch (evt.keyCode) {
        case 90:  
            // Call your method Here
            break;
    }

    //For combine keys like Alt+P
    document.onkeyup = function (e) {
        var evt = window.event || e;   
        if (evt.keyCode == 80 && evt.altKey) {
            // Call Your method here   
        }
    }

    //ensure if short cut keys are case sensitive.
    //    If its not case sensitive then
    //check with the evt.keyCode values for both upper case and lower case