var SiteIDxmlHttp

function toggleSiteID(cartID,siteName) { 
	SiteIDxmlHttp=SiteIDGetXmlHttpObject(); // check browser AJAX compatibility and create a new object
	if (SiteIDxmlHttp==null) { // if it fails, browser doesn't support AJAX.  Let them know.
	  alert ("Your browser does not support AJAX!");
	  return;
	} 
	var url="sw_AJAX/updateSiteIDUserOption.php?xCartID="+cartID+"&xSiteName="+siteName;
	SiteIDxmlHttp.divName = "SiteID";
	SiteIDxmlHttp.onreadystatechange=SiteIDstateChanged;
	SiteIDxmlHttp.open("GET",url,true);
	SiteIDxmlHttp.send(null);
}

function SiteIDstateChanged() { 
	if (SiteIDxmlHttp.readyState==4) { 
		document.getElementById(SiteIDxmlHttp.divName).innerHTML=SiteIDxmlHttp.responseText;
	}
}

function SiteIDGetXmlHttpObject() { // see if browser supports AJAX calls
	var xmlHttp=null;
	try { xmlHttp=new XMLHttpRequest(); } // Firefox, Opera 8.0+, Safari
	catch (e) {
	  try {	xmlHttp=new ActiveXObject("Msxml2.XMLHTTP"); } // Internet Explorer
	  catch (e) { xmlHttp=new ActiveXObject("Microsoft.XMLHTTP"); }
	}
	return xmlHttp;
}