if ( HttpManager.Request.QueryString("ListingType").length > 0 ) { document.frmCommercialSearch.ListingType.value = HttpManager.Request.QueryString("ListingType") }

var sCommercialTypes = HttpManager.Request.QueryString("chkCommercialTypes");
if ( sCommercialTypes.length > 0 ){
	aCommercialTypes = sCommercialTypes.split(",");
	for ( var i = 0; i < document.frmCommercialSearch.chkCommercialTypes.length; i ++ ){
		var item = document.frmCommercialSearch.chkCommercialTypes[i];
		for ( var ii = 0; ii < aCommercialTypes.length; ii ++ ){
			if ( aCommercialTypes[ii] == item.value ){
				item.checked = true;
				break;
			}
		}
	}
}else{
	document.frmCommercialSearch.chkCommercialTypes_Item0.checked = true;
}

function CommercialType_OnClick(o){
	if ( o.value.length > 0 ){
		document.frmCommercialSearch.chkCommercialTypes_Item0.checked = false;
	}else{
		for ( var i = 1; i < document.frmCommercialSearch.chkCommercialTypes.length; i ++ ){
			var item = document.frmCommercialSearch.chkCommercialTypes[i];	
			item.checked = false;
		}
	}
}