Below JS function will use for disabling the new tab functionality and it will throw the alert message.
function disableNewTabClick() {
var listCtrl = document.getElementsByTagName('a');
for (var i = 0; i < listCtrl.length; i++) {
listCtrl[i].onmousedown = function (event) {
if (!event) event = window.event;
if (event.ctrlKey) {
alert("Functionality for Opening links in a new tab/window is disabled !");
return false;
} if (event.shiftKey) {
alert("Functionality for Opening links in a new tab/window is disabled !");
return false;
} if (event.shiftKey && event.ctrlKey) {
alert("Functionality for Opening links in a new tab/window is disabled !");
return false;
}
}
}
}