function isInteger(s){
	var i;
	if (s=="") {
		return false;		
	} else {
		for (i = 0; i < s.length; i++){   
		// Check that current character is number.
		var c = s.charAt(i);
		if (((c < "0") || (c > "9"))) return false;
		}
	}
	// All characters are numbers.
	return true;
}

function validateEmail(strEmail)
{
	var at="@";
    var dot=".";
    var lat=strEmail.indexOf(at);
	var lstr=strEmail.length;
	var	ldot=strEmail.indexOf(dot);

	if (strEmail.indexOf(at)==-1) {
    	return false;
	}

	if (strEmail.indexOf(dot)==-1) {
		return false;
	}
	
	return true;
}