function checkmobileexited(){
	var url = ctxPath + '/commAjax.do?method=gJpRate' ;
	var param = '';
    var myAjax = new Ajax.Request(
        url,
        {
            method:'get',
            parameters:param,
            asynchronous:true,       //true---异步;false---同步.默认为true
            onComplete:resultJpRate,
            onFailure: errorJpRate
        }
    );
   
}
function resultJpRate(v){
	if(v.status == 200){
		var jsonObject = eval( "("+ v.responseText +")" );
		$('jp_rate').innerText=jsonObject.rmb_rate;
	}
}
function errorJpRate(){
	alert("aa");
}