// __IsCanvasInited
var TaxRes = '';
var TaxIsShow = true;
function TaxResShow() {
if (!TaxIsShow) {   
if (TaxRes != '') {
	eval(TaxRes);
    }
    else {
       initTaxArea();
    }
}
else
{
gMap.layerCanvas.shapeClear();
}
    TaxIsShow = !TaxIsShow;
}
function onTaxQuerySucc(res){
    eval(res);
    TaxRes = res;
};
function onTaxQueryFailure(){
};
function initTaxArea(){
    var net= new XHR({
                    method: 'get', 
                    autoCancel: true,
                    onSuccess: onTaxQuerySucc ,
                    onFailure: onTaxQueryFailure
            });
    net.send( 'TaxArea.aspx' );
};
function CheckCanvasLoaded(){
    if((!__IsCanvasInited)||(document.readyState != "complete")){
        taxItv= setTimeout(CheckCanvasLoaded, 1000);
        return ;
    }
    initTaxArea();
};
var taxItv= setTimeout(CheckCanvasLoaded, 500);