function check_email(email)
{
	has_a = false;
	has_point = false;

	for( i = 1; i < email.value.length; i++ ) {
		if( email.value.charAt(i) == '@' ) {
			has_a = true;
			i++;
		} else if( email.value.charAt(i) == '.' )
			if( i + 1 < email.value.length )
				has_point = true;
	}

	if( has_point && has_a )
		return true;

	return false;
}

function check_phone(number) 
{ 
	var j = 0;
	for( var i = 0; i < number.value.length; i++ ) { 
		var n = number.value.charAt(i);

		if( !(parseFloat(n) >= 0) ) {
			if( !(parseFloat(n) <= 9) ) {
				if( !(n == "-"  ||  n == "/"  ||  n == "\\"  ||  n == "."  ||  n == ","  ||  n == ";"  ||  n == " "  || n == "("  ||  n == ")") )
					return false;
			} else
				j = j + 1;
		} else {
			j = j + 1;
		}
	}

	if( j < 7 )
		return false;
						
	return true;
}