function leadingChar(str, addChar, num)
{
	if (addChar===null)
		addChar="0";
	if (num===null)
		num=2;
	str = String(str);
	while (str.length < num)
		str = addChar + str;
		
	return str;
}

function getParams2Obj(windowUrl)
{
	var params = {};
	var getParams = windowUrl.split('?')[1].split("&");
	for (var pairIdx in getParams)
	{
		var pair = getParams[pairIdx].split("=");
		params[pair[0]] = pair[1];
	}
	return params;
}