function getPageYOffset ()
{
	return window.pageYOffset;
}

function getPageXOffset ()
{
	return window.pageXOffset;
}

function getInnerHeight ()
{
	return window.innerHeight;
}

function getInnerWidth ()
{
	return window.innerWidth;
}
	
function createRadio (uid)
{
	var radio = document.createElement ('input');
	radio.type = 'radio';
	radio.name = uid;
	return radio;
}

function setInputTypeNumber (input)
{
	input.type = 'number';
}