Create a new SPModal instance, then do something on 'Cancel' or 'OK' #Javascript #SharePoint

SPModalDialog.js

function CloseCallback(result, target)
{ 
	if(result === SP.UI.DialogResult.OK)
	{
		$('#canceledDiv').hide();
		$('#displayDiv').hide();
		$('#thankYouDiv').show();
		//window.location.replace("http://stackoverflow.com");
	}
	if(result === SP.UI.DialogResult.cancel)
	{
		//prompt();
		$('#canceledDiv').show();
	}
}

function openDialog ()
{
	var options =
	{
		title: "New Patient Safety Event Report",
		url: "../Lists/PSafety/NewReport.aspx",
		dialogReturnValueCallback: CloseCallback
	};
	SP.SOD.execute('sp.ui.dialog.js', 'SP.UI.ModalDialog.showModalDialog', options);
}