function checkAll(element)
{
	box = document.getElementsByName(element);
	
	if(box[0].checked == false)
	{
		for(i = 0; i < box.length; i++)
		{
			box[i].checked = true;
		}
	}
	else
	{
		for(i = 0; i < box.length; i++)
		{
			box[i].checked = false;
		}
	}
}