function TabCng(tab)
{
	var Label = parseInt(tab);
	if(Label == 1)
	{
		document.getElementById("tabnav1").className = 'selected';
		document.getElementById("tabnav2").className = '';
		document.getElementById("tabnav3").className = '';
		document.getElementById("tabnav4").className = '';
		document.getElementById("tab1").style.display = 'block';
		document.getElementById("tab2").style.display = 'none';
		document.getElementById("tab3").style.display = 'none';
		document.getElementById("tab4").style.display = 'none';
	}
	if(Label == 2)
	{
		document.getElementById("tabnav2").className = 'selected';
		document.getElementById("tabnav1").className = '';
		document.getElementById("tabnav3").className = '';
		document.getElementById("tabnav4").className = '';
		document.getElementById("tab2").style.display = 'block';
		document.getElementById("tab1").style.display = 'none';
		document.getElementById("tab3").style.display = 'none';
		document.getElementById("tab4").style.display = 'none';
	}
	if(Label == 3)
	{
		document.getElementById("tabnav3").className = 'selected';
		document.getElementById("tabnav1").className = '';
		document.getElementById("tabnav2").className = '';
		document.getElementById("tabnav4").className = '';
		document.getElementById("tab3").style.display = 'block';
		document.getElementById("tab1").style.display = 'none';
		document.getElementById("tab2").style.display = 'none';
		document.getElementById("tab4").style.display = 'none';
	}
	if(Label == 4)
	{
		document.getElementById("tabnav4").className = 'selected';
		document.getElementById("tabnav1").className = '';
		document.getElementById("tabnav2").className = '';
		document.getElementById("tabnav3").className = '';
		document.getElementById("tab4").style.display = 'block';
		document.getElementById("tab1").style.display = 'none';
		document.getElementById("tab2").style.display = 'none';
		document.getElementById("tab3").style.display = 'none';
	}
	if(Label == 5)
	{
		document.getElementById("sp3").style.background = 'url(' + 'images/tabbtnbg.gif' + ') repeat-x 0 0';
		document.getElementById("sp1").style.background = '#fff url(' + 'images/tabbg.gif)' + 'repeat-x';

		document.getElementById("sp2").style.background = '#fff url(' + 'images/tabbg.gif)' + 'repeat-x';

		document.getElementById("tab3").style.display = 'block';
		document.getElementById("tab1").style.display = 'none';
		document.getElementById("tab2").style.display = 'none';
	}
}