Input box loses focus and checksum onkeyup difference data onblur

onkeyup and onblur difference

onkeyup knock open a letter that instantly trigger,
onblur when the mouse over the area outside the trigger

Case

<!-- body -->
 <input class="form-control " name="projectBudgetAmount" id="projectBudgetAmount"
type="text"   onblur="checkMoney();" />


<!-- js -->
function checkMoney(){
    var money = $("#returns_money").val();
    var exp = /^([1-9][\d]{0,7}|0)(\.[\d]{1,2})?$/;
    if(exp.test(money)){
        $("#money_check_result").html("");
    }else{
        $("#money_check_result").html("<i></i><label >请填写正确的金额</label>");
    }
}