function dateLast()
{
	var monthOp = document.CalControl.month;
	var yrOp = document.CalControl.year;
	var mop= monthOp.selectedIndex;
	var yop = yrOp.selectedIndex;
	mop--; 
	if (mop<0) 
	{
		mop=monthOp.options.length-1;
		yop--; if (yop<0) yop=0;
	}
	monthOp.options[mop].selected=true;
	yrOp.options[yop].selected=true;
	document.CalControl.submit();
}

function dateNext()
{
	var monthOp = document.CalControl.month;
	var yrOp = document.CalControl.year;
	var mop= monthOp.selectedIndex;
	var yop = yrOp.selectedIndex;
	mop++; 
	if (mop>monthOp.options.length-1) 
	{
		mop=0;
		yop++; if (yop>yrOp.options.length-1) yop=0;
	}
	monthOp.options[mop].selected=true;
	yrOp.options[yop].selected=true;
	document.CalControl.submit();
}