function isNumm(string) {
    string=string.replace(".","")	
    if (string.length == 0)
        return false;
    for (var i=0;i < string.length;i++)
        if ((string.substring(i,i+1) < '0') || (string.substring(i,i+1) > '9') )
            return false;
    
    return true;
}


function cleanZero(sStr) {
 if ( sStr < 10 ) sStr="0"+sStr
 return sStr
}

function getDateNum() {
 
 var myDate = new Date()
 var month=myDate.getMonth()+1
 var year =myDate.getFullYear()
 var day  =myDate.getDate()
 var hours=myDate.getHours()
 var minutes=myDate.getMinutes()
 var seconds=myDate.getSeconds()
 year+=""
 year=year.substring(2,4)

 month=cleanZero(month)
 day=cleanZero(day)
 hours=cleanZero(hours)
 minutes=cleanZero(minutes)
 seconds=cleanZero(seconds)
 
 return year+month+day+hours+minutes

}