function dosel(idx)
	{
		if (idx==1)
		{
			document.getElementById("page1").style.display = "";
			document.getElementById("ca1").background="image/butbk.gif";
		}
		else
		{
			document.getElementById("page1").style.display = "none";
			document.getElementById("ca1").background="image/rowbd.gif";
		}
		if (idx==2)
		{
			document.getElementById("page2").style.display = "";
			document.getElementById("ca2").background="image/butbk.gif";
		}
		else
		{
			document.getElementById("page2").style.display = "none";
			document.getElementById("ca2").background="image/rowbd.gif";
		}
		if (idx==3)
		{
			document.getElementById("page3").style.display = "";
			document.getElementById("ca3").background="image/butbk.gif";
		}
		else
		{
			document.getElementById("page3").style.display = "none";
			document.getElementById("ca3").background="image/rowbd.gif";
		}
		if (idx==4)
		{
			document.getElementById("page4").style.display = "";
			document.getElementById("ca4").background="image/butbk.gif";
		}
		else
		{
			document.getElementById("page4").style.display = "none";
			document.getElementById("ca4").background="image/rowbd.gif";
		}
		if (idx==5)
		{
			document.getElementById("page5").style.display = "";
			document.getElementById("ca5").background="image/butbk.gif";
		}
		else
		{
			document.getElementById("page5").style.display = "none";
			document.getElementById("ca5").background="image/rowbd.gif";
		}
	}