function validateVehicleInfoForm(){
		//验证数据的合法性
	obj = document.vehicleInfoForm;
		if(obj.vehicleCategory.value == ""){
			  alert("请选择车牌种类！！");
			  obj.vehicleCategory.focus();
			  return;
		 }
		 if (obj.vehicleNumber.value == "")
		 {
		  alert("请输入车牌号码！！");
		  obj.vehicleNumber.focus();
		  return;
		 }
		 if(obj.checkCode.value==""){
		   alert("验证码不能为空");
		   obj.checkCode.focus();	
	    	return ;
	    }
     obj.submit();
}

function formSubmitByKey(evt){
	var evt = window.event?window.event:evt;
	if(evt.keyCode==13){
	 	validateVehicleInfoForm();
	 } 
}

function reloadImage(url) 
{ 
	document.getElementById("imgCheckCodeID").src = url; 
}