function generatePassword(len){
	len	= parseInt(len);
	if(!len)
		len = 6;
	var password = "";
	var chars    = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
	var charsN   = chars.length;
	var nextChar;

	for(i=0;i<len;i++){
		nextChar = chars.charAt(Math.floor(Math.random()*charsN));
		password += nextChar
	}
	return password;
}