js 限制提交

var mypretime = 0;   

function submitCreateInTime(){

    var Today = new Date(); 
    var NowHour = Today.getHours(); 
    var NowMinute = Today.getMinutes(); 
    var NowSecond = Today.getSeconds(); 
    var mysec = (NowHour*3600)+(NowMinute*60)+NowSecond; 
    if((mysec-mypretime)>30){ 
    //10只是一个时间值，就是10秒内禁止重复提交，值随便设 
    mypretime=mysec;
    }else{
    alert('30秒内禁止提交')
    return;
    }
    submitCreate()
    }