function checkNumeric(objName,minval, maxval,comma,period,hyphen,msg)
{
	var numberfield = objName;
	if (numberfield.value==""){
		return true;
	
	}

	if (chkNumeric(objName,minval,maxval,comma,period,hyphen,msg) == false)
	{
		numberfield.select();
		numberfield.focus();
		return false;
	}
	else
	{
		//alert(numberfield.value);
		var val=numberfield.value;
		val=parseFloat(val);
		val= val.toFixed(0);
		//alert(val);
		numberfield.value=val;
		//alert(objName.value.toFixed(2));;
		return true;
	}
}


function chkNumeric(objName,minval,maxval,comma,period,hyphen,msg)
{
// only allow 0-9 be entered, plus any values passed
// (can be in any order, and don't have to be comma, period, or hyphen)
// if all numbers allow commas, periods, hyphens or whatever,
// just hard code it here and take out the passed parameters
var checkOK = "0123456789" + comma + period + hyphen;
var checkStr = objName;
var allValid = true;
var cntdec = 0;
var allNum = "";
var pos;
var count;
for (i = 0;  i < checkStr.value.length;  i++)
{
ch = checkStr.value.charAt(i);
for (j = 0;  j < checkOK.length;  j++)
if (ch == checkOK.charAt(j))
break;
if (j == checkOK.length)
{
allValid = false;
break;
}
if (ch != ",")
allNum += ch;
}
count = 0;
pos = checkStr.value.indexOf(".");
while ( pos != -1 ) {
   count++;
   pos = checkStr.value.indexOf(".",pos+1);
}
if (count>1){
	allValid = false;

}
	if (!allValid)
	{	
		alertsay = "Please enter only these values \""
		alertsay = alertsay + checkOK + "\" and in the correct format in the \"" + msg + "\" field."
		alert(alertsay);
		return (false);
	}

// set the minimum and maximum
var chkVal = allNum;
var prsVal = parseFloat(allNum);
if (chkVal != "" && !(prsVal >= minval && prsVal <= maxval))
{
alertsay = "Please enter a value greater than or "
alertsay = alertsay + "equal to \"" + minval + "\" and less than or "
alertsay = alertsay + "equal to \"" + maxval + "\" in the \"" + msg + "\" field."
alert(alertsay);
return (false);
}
}

function isInput(field){
		// True if val is whitespace only or empty.
		var re = /\S+/;
		return (re.test(field));
	}
	
	//function to check valid email address
	function emailCheck (emailStr) {
		var checkTLD=1;
		var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
		var emailPat=/^(.+)@(.+)$/;
		var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
		var validChars="\[^\\s" + specialChars + "\]";
		var quotedUser="(\"[^\"]*\")";
		var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
		var atom=validChars + '+';
		var word="(" + atom + "|" + quotedUser + ")";
		var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
		var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
		var matchArray=emailStr.match(emailPat);

		if (matchArray==null) {
			alert("Email address seems incorrect (check @ and .'s)");
			return false;
		}
		var user=matchArray[1];
		var domain=matchArray[2];
		for (i=0; i<user.length; i++) {
			if (user.charCodeAt(i)>127) {
				alert("Ths username contains invalid characters.");
				return false;
			}
		}
		for (i=0; i<domain.length; i++) {
			if (domain.charCodeAt(i)>127) {
				alert("Ths domain name contains invalid characters.");
				return false;
		    }
		}

		if (user.match(userPat)==null) {
			alert("The username doesn't seem to be valid.");
			return false;
		}

		var IPArray=domain.match(ipDomainPat);
			if (IPArray!=null) {
				for (var i=1;i<=4;i++) {
					if (IPArray[i]>255) {
						alert("Destination IP address is invalid!");
						return false;
				    }
				}
				return true;
			}

		var atomPat=new RegExp("^" + atom + "$");
		var domArr=domain.split(".");
		var len=domArr.length;
		for (i=0;i<len;i++) {
			if (domArr[i].search(atomPat)==-1) {
				alert("The domain name does not seem to be valid.");
				return false;
			}
		}
		if (checkTLD && domArr[domArr.length-1].length!=2 && 
			domArr[domArr.length-1].search(knownDomsPat)==-1) {
				alert("The address must end in a well-known domain or two letter " + "country.");
				return false;
			}
		if (len<2) {
			alert("This address is missing a hostname!");
			return false;
		}
	return true;
	}