function showtab1() {
	document.getElementById('tab1a').style.visibility = 'visible';
	document.getElementById('tab2a').style.visibility = 'hidden';
	document.getElementById('tab3a').style.visibility = 'hidden';
}
function showtab2() {
	document.getElementById('tab1a').style.visibility = 'hidden';
	document.getElementById('tab2a').style.visibility = 'visible';
	document.getElementById('tab3a').style.visibility = 'hidden';
}
function showtab3() {
	document.getElementById('tab1a').style.visibility = 'hidden';
	document.getElementById('tab2a').style.visibility = 'hidden';
	document.getElementById('tab3a').style.visibility = 'visible';
}


function dropdownProductsShow() {
	if (document.getElementById) {
		document.getElementById('allNavClose').style.visibility = 'visible';
		document.getElementById('dropdownProductsContainer').style.visibility = 'visible';
	}
}
function dropdownProductsHide() {
	if (document.getElementById) {
		allNavClose();
	}
}


function allNavClose() {
	if (document.getElementById) {
		document.getElementById('allNavClose').style.visibility = 'hidden';
		document.getElementById('dropdownProductsContainer').style.visibility = 'hidden';
	}	
}