function checkIsNumber(myObj, errorMes){
	// checks that 
	//var re = /[0123456789-]+/
	//if (re.test(myObj.value)){
	var sub1 = myObj.value;
	if (isNaN(sub1)){
		errorHandler(myObj, errorMes);	
	}else{
		return true;
	}
}


function checkWholeNumber(myObj, errorMes){
    var val = trim(myObj.value);
	if (val.indexOf(".")> -1){
		return errorHandler(myObj,errorMes);
	}else{
		return true;
	}
}