function setPreferences(MessageId) {
	document.getElementById("MessageId").innerHTML = "";
	var success = function(t){setPreferencesComplete(t,MessageId);}
	var failure = function(t){setPreferencesFailed(t);}
	var url = SiteAjaxFolder+"preferences.php";
	var NumberOfResults = document.getElementById("frmNumberOfResults").value;
	if(document.getElementById("frmResultsWindow").checked)
		var ResultsWindow = document.getElementById("frmResultsWindow").value;
	else
		var ResultsWindow = "";
	var Network = document.getElementById("frmNetworks").value;
	var pars = 'NumberOfResults='+NumberOfResults+'&ResultsWindow='+ResultsWindow+'&FormAction=Preferences&Network='+Network;
	var myAjax = new Ajax.Request(url, {method:'post',postBody:pars, onSuccess:success, onFailure:failure});

}

function setPreferencesComplete(t,MessageId)	{
	var RedirectUrl = document.getElementById("RefererPage").value;
	var strValue = trim(t.responseText);
	document.getElementById("MessageId").innerHTML = "<table border=\"0\" height=\"25\" width=\"100%\"><tr><td class=\"ErrorFont\" align=\"center\"><span class=\"SuccessFont\">"+strValue+"</span></td></tr></table>";
	window.setTimeout("setRedirectionPage('"+RedirectUrl+"');",1000);
}