function showtab(tabval)
{
	var tab0 = document.getElementById("tab0");
	var tab1 = document.getElementById("tab1");
	var tab2 = document.getElementById("tab2");
	var tab3 = document.getElementById("tab3");
	var tab4 = document.getElementById("tab4");
	var tab5 = document.getElementById("tab5");
	var tab6 = document.getElementById("tab6");
	var tab7 = document.getElementById("tab7");
	var tab8 = document.getElementById("tab8");
	var tab9 = document.getElementById("tab9");
	var tab10 = document.getElementById("tab10");

	tab0.style.display = "none";
	tab1.style.display = "none";
	tab2.style.display = "none";
	tab3.style.display = "none";
	tab4.style.display = "none";
	tab5.style.display = "none";
	tab6.style.display = "none";
	tab7.style.display = "none";
	tab8.style.display = "none";
	tab9.style.display = "none";
	tab10.style.display = "none";

	if(tabval == 1)
		tab1.style.display = "block";
	else if(tabval == 2)
		tab2.style.display = "block";
	else if(tabval == 3)
		tab3.style.display = "block";
	else if(tabval == 4)
		tab4.style.display = "block";
	else if(tabval == 5)
		tab5.style.display = "block";
	else if(tabval == 6)
		tab6.style.display = "block";
	else if(tabval == 7)
		tab7.style.display = "block";
	else if(tabval == 8)
		tab8.style.display = "block";
	else if(tabval == 9)
		tab9.style.display = "block";
	else if(tabval == 10)
		tab10.style.display = "block";
}