function initForm(strFormName)
{
	objForm = document.forms[strFormName];
	objForm.target = "";
	objForm.action = "main.php";
	objForm.method = "post";	
	return objForm;
}

function MakePopWindow(strForm, strMethod, strID)
{
	var objForm = initForm(strForm);

	objForm.formOP.value = strMethod;
	objForm.train_id.value = strID;	
	popwindow("theme/publicjscript/popwindowtrain.html", strForm, 640, 480);		
	return false;
}


<!-- chk Remote Cookie Start //-->
function chkRemoteCookie()
{
	var aryParam = new Array();
	
    aryParam['formmethod']   = "POST";
    aryParam['handler']      = "main.php";
    aryParam['respontype']   = "XML";  // HTML or XML
    aryParam['poststring']   = "po=homepage&op=homepage_chkcookie";
    aryParam['distancename'] = "ShowCookieResult";
	
	ClassAJAX(aryParam);
}

function ShowCookieResult(objRespon)
{
	if ( !objRespon )
		return false;
	
	var objResult = objRespon.childNodes.item(0).childNodes;
	
	
	if ( objResult.item(0) == null )
		return false;
	
	alert(objResult.item(0).firstChild.data);		
	return false;

	/*
	for (var loop_i = 0; loop_i < objRespon.getElementsByTagName('item').length; loop_i++) {
		var objResult = objRespon.childNodes.item(loop_i).childNodes;
		
		for (var loop_j = 0; loop_j < objResult.length; loop_j++) {
			alert(objResult.item(loop_j).firstChild.data);
			
			//document.getElementById(aryField[loop_j]).value = (objResult.item(loop_j).firstChild)
			//? objResult.item(loop_j).firstChild.data : "";
		}
	}
	*/
}
<!-- chk Remote Cookie End //-->