<!--
ns4 = (document.layers) ? true:false
ie4 = (document.all) ? true:false
ng5 = (document.getElementById) ? true:false
var gCurrent = 1;

function scroll(n)
{
	if( gTotal == 1 )
	{
		if (ng5) document.getElementById('darrow').style.visibility = "hidden";
		else if (ns4) document.layers["darrow"].visibility = "hide";
		else if (ie4) document.all["darrow"].style.visibility = "hidden";

		if (ng5) document.getElementById('uarrow').style.visibility = "hidden";
		else if (ns4) document.layers["uarrow"].visibility = "hide";
		else if (ie4) document.all["uarrow"].style.visibility = "hidden";

		return;
	}

	if( gCurrent == 1 && n < 0 ) return;
	if( gCurrent == gTotal && n > 0 ) return;

	gCurrent += n;

	if( gCurrent == 1 )
	{
		if (ng5) document.getElementById('uarrow').style.visibility = "hidden";
		else if (ns4) document.layers["uarrow"].visibility = "hide";
		else if (ie4) document.all["uarrow"].style.visibility = "hidden";

		if (ng5) document.getElementById('darrow').style.visibility = "visible";
		else if (ns4) document.layers["darrow"].visibility = "show";
		else if (ie4) document.all["darrow"].style.visibility = "visible";
	}
	else if( gCurrent == gTotal )
	{
		if (ng5) document.getElementById('darrow').style.visibility = "hidden";
		else if (ns4) document.layers["darrow"].visibility = "hide";
		else if (ie4) document.all["darrow"].style.visibility = "hidden";

		if (ng5) document.getElementById('uarrow').style.visibility = "visible";
		else if (ns4) document.layers["uarrow"].visibility = "show";
		else if (ie4) document.all["uarrow"].style.visibility = "visible";
	}
	else
	{
		if (ng5) document.getElementById('darrow').style.visibility = "visible";
		else if (ns4) document.layers["darrow"].visibility = "show";
		else if (ie4) document.all["darrow"].style.visibility = "visible";

		if (ng5) document.getElementById('uarrow').style.visibility = "visible";
		else if (ns4) document.layers["uarrow"].visibility = "show";
		else if (ie4) document.all["uarrow"].style.visibility = "visible";
	}
}
-->