function checkAll()
{
	var end = document.getElementById("max").value
	if(end=="0")
	{
		end = 0
	}
	else if(end==10)
	{
		end = 10
	}
	for(i=0;i<end;i++)
	{
		document.getElementById(i).checked = true;
	}
return false
}

function uncheckAll()
{
	var end = document.getElementById("max").value
	if(end=="0")
	{
		end = 0
	}
	else if(end==10)
	{
		end = 10
	}
	for(i=0;i<end;i++)
	{
		document.getElementById(i).checked = false;
	}
return false
}