// var captchaImgSRC = 'http://mamaison.com/system/Shared/CaptchaSecurityImages.php?code=';
function reloadCaptcha(idImg, idHash, codelen) {
	if(!codelen) var codelen = 4;
	reloadCaptchaImage(generateCaptchaCode(codelen), idImg, idHash);
}

function generateCaptchaCode(codelen) {
	var possible = '23456789bcdfghjkmnpqrstvwxyz';
	var code = '';
	var rand;
	for(var i = 0; i < codelen; i++) {
		rand = Math.floor(Math.random()*possible.length);
		code = code + possible.substring(rand, rand+1);
	}
	return code;
}

function reloadCaptchaImage(code, idImg, idHash) {
	var hash = hex_md5(code);
	document.getElementById(idImg).src= captchaImgSRC + code;
	document.getElementById(idHash).value = hash;
}