var ajax = new sack();

ajax.requestFile = 'topcatch.php';
ajax.onCompletion = createTopCatch;
ajax.runAJAX();		// Execute AJAX function

function createTopCatch()
{
	document.getElementById('topcatch').innerHTML = ajax.response;

//	var obj = document.getElementById('selpostm_id');
//	eval(ajax.response);	// Executing the response from Ajax as Javascript code	

}