function checkInt() {

	if ((window.event.keyCode>=48) && (window.event.keyCode<=57) || (window.event.keyCode==8) || (window.event.keyCode==9) || (window.event.keyCode==36) || (window.event.keyCode==35) || (window.event.keyCode==46) || (window.event.keyCode>=37) && (window.event.keyCode<=40) || (window.event.keyCode>=96) && (window.event.keyCode<=105)) return true;
	return false;
}	

function checkDate(str) {

	var dateStr=new String(str);
	var dateArray=dateStr.split('-');
	
	today=new Date();
	
	day=parseInt(dateArray[0]);
	month=parseInt(dateArray[1]);	
	year=parseInt(dateArray[2]);	
	
	if ((day>0 && day<32) && (month>0 && month<13) && (year>=today.getYear())) {
		return true;
	}

	return false;

}