add disabled tag javascript to button code example
Example: javascript how to disable a button
//Using Javascript
//Disabling a html button
document.getElementById("Button").disabled = true;
//Enabling a html button
document.getElementById("Button").disabled = false;
//Using jQuery
//Disabling a html button
$('#Button').attr('disabled','disabled');
//Enabling a html button
$('#Button').removeAttr('disabled');