/*mainNav*/
function showMenus(num)
{
	var as = document.getElementById('nav').getElementsByTagName('a');
        for(i=0;i<as.length;i++)
	{
        document.getElementById('subMenu'+(i+1)).style.display = 'none';
	}
	document.getElementById('subMenu'+num).style.display = 'block';
}

function showTab(num)
{
	if(num==1)
	{
		document.getElementById('a1').className = 'active1';
		document.getElementById('a2').className = '';
		document.getElementById('a3').className = '';
		document.getElementById('con1').style.display = '';
		document.getElementById('con2').style.display = 'none';
		document.getElementById('con3').style.display = 'none';
	}
	if(num==2)
	{
		document.getElementById('a1').className = 'active2';
		document.getElementById('a2').className = 'active1';
		document.getElementById('a3').className = '';
		document.getElementById('con1').style.display = 'none';
		document.getElementById('con2').style.display = '';
		document.getElementById('con3').style.display = 'none';
	}
	if(num==3)
	{
		document.getElementById('a1').className = 'active3';
		document.getElementById('a2').className = 'active4';
		document.getElementById('a3').className = 'active1';
		document.getElementById('con1').style.display = 'none';
		document.getElementById('con2').style.display = 'none';
		document.getElementById('con3').style.display = '';
	}
}

function showBlog(num)
{
	var spans = document.getElementById('tabNav1').getElementsByTagName('span');
	for(i=0;i<spans.length;i++)
	{
		spans[i].className = '';
		document.getElementById('blogCon'+(i+1)).style.display = 'none';
	}
	document.getElementById('span'+num).className = 'active';
	document.getElementById('blogCon'+num).style.display = '';
}