function handlePaste (e) {
var clipboardData, pastedData;
// Stop data actually being pasted into div
e.stopPropagation();
e.preventDefault();
// Get pasted data via clipboard API
clipboardData = e.clipboardData || window.clipboardData;
pastedData = clipboardData.getData('Text');
// Do whatever with pasteddata
alert(pastedData);
}
document.getElementById('editableDiv').addEventListener('paste', handlePaste);