function showtab(tab) 
{
	if (tab==2) 
	{
		document.getElementById('tab_blogs').style.color = "#FFFFFF";
		document.getElementById('tab_pub').style.color = "#3A3B3D";
		document.getElementById('opt_search').value ="2";
	}
	else
	{
		document.getElementById('tab_pub').style.color = "#FFFFFF";
		document.getElementById('tab_blogs').style.color = "#3A3B3D";
		document.getElementById('opt_search').value ="1";
	}
}