function Numbers(e,formval)
	{
		
var e=window.event || e
var keyunicode=e.charCode || e.keyCode
//Allow alphabetical keys, plus BACKSPACE and SPACE

var patt1=new RegExp("-");

if ((formval=='') && (keyunicode==45)){
alert('invalid string:cannot start with -')
return false;
}
else
{
	if ((patt1.test(formval)) && (keyunicode==45))  {
	alert('invalid string')
	return false;
	}
	else
	{
	//alert('invalid string')
	return (keyunicode>=65 && keyunicode<=90 || keyunicode>=97 && keyunicode<=122 || keyunicode==45 || keyunicode==8 || keyunicode==32)? true : false
	}
}
}