function switchTab(tabNo) {
	var browser = navigator.appName;
	var classVar;
	
	if (browser=="Microsoft Internet Explorer") {
		classVar = 'className';
	} else {
		classVar = 'class';
	}
	
	switch(tabNo) {
		case 1:
			document.getElementById("tab1").setAttribute(classVar, "active");
			document.getElementById("tab2").setAttribute(classVar, "");
			document.getElementById("tab3").setAttribute(classVar, "");
			if (!(document.getElementById("tab4")===null)) {
				document.getElementById("tab4").setAttribute(classVar, "");
			}
			if (!(document.getElementById("tab5")===null)) {
				document.getElementById("tab5").setAttribute(classVar, "");
			}

			document.getElementById("tabContent1").style.display = '';
			document.getElementById("tabContent2").style.display = 'none';
			document.getElementById("tabContent3").style.display = 'none';
			if (!(document.getElementById("tabContent4")===null)) {
				document.getElementById("tabContent4").style.display = 'none';
			}
			if (!(document.getElementById("tabContent5")===null)) {
				document.getElementById("tabContent5").style.display = 'none';
			}

		break;
		case 2:
			document.getElementById("tab1").setAttribute(classVar, "");
			document.getElementById("tab2").setAttribute(classVar, "active");
			document.getElementById("tab3").setAttribute(classVar, "");
			if (!(document.getElementById("tab4")===null)) {
				document.getElementById("tab4").setAttribute(classVar, "");
			}
			if (!(document.getElementById("tab5")===null)) {
				document.getElementById("tab5").setAttribute(classVar, "");
			}

			document.getElementById("tabContent1").style.display = 'none';
			document.getElementById("tabContent2").style.display = '';
			document.getElementById("tabContent3").style.display = 'none';
			if (!(document.getElementById("tabContent4")===null)) {
				document.getElementById("tabContent4").style.display = 'none';
			}
			if (!(document.getElementById("tabContent5")===null)) {
				document.getElementById("tabContent5").style.display = 'none';
			}

		break;
		case 3:
			document.getElementById("tab1").setAttribute(classVar, "");
			document.getElementById("tab2").setAttribute(classVar, "");
			document.getElementById("tab3").setAttribute(classVar, "active");
			if (!(document.getElementById("tab4")===null)) {
				document.getElementById("tab4").setAttribute(classVar, "");
			}
			if (!(document.getElementById("tab5")===null)) {
				document.getElementById("tab5").setAttribute(classVar, "");
			}

			document.getElementById("tabContent1").style.display = 'none';
			document.getElementById("tabContent2").style.display = 'none';
			document.getElementById("tabContent3").style.display = '';
			if (!(document.getElementById("tabContent4")===null)) {
				document.getElementById("tabContent4").style.display = 'none';
			}
			if (!(document.getElementById("tabContent5")===null)) {
				document.getElementById("tabContent5").style.display = 'none';
			}

		break;
		case 4:
			document.getElementById("tab1").setAttribute(classVar, "");
			document.getElementById("tab2").setAttribute(classVar, "");
			document.getElementById("tab3").setAttribute(classVar, "");
			if (!(document.getElementById("tab4")===null)) {
				document.getElementById("tab4").setAttribute(classVar, "active");
			}
			if (!(document.getElementById("tab5")===null)) {
				document.getElementById("tab5").setAttribute(classVar, "");
			}

			document.getElementById("tabContent1").style.display = 'none';
			document.getElementById("tabContent2").style.display = 'none';
			document.getElementById("tabContent3").style.display = 'none';
			if (!(document.getElementById("tabContent4")===null)) {
				document.getElementById("tabContent4").style.display = '';
			}
			if (!(document.getElementById("tabContent5")===null)) {
				document.getElementById("tabContent5").style.display = 'none';
			}
		break;
		case 5:
			document.getElementById("tab1").setAttribute(classVar, "");
			document.getElementById("tab2").setAttribute(classVar, "");
			document.getElementById("tab3").setAttribute(classVar, "");
			if (!(document.getElementById("tab4")===null)) {
				document.getElementById("tab4").setAttribute(classVar, "");
			}
			if (!(document.getElementById("tab5")===null)) {
				document.getElementById("tab5").setAttribute(classVar, "active");
			}

			document.getElementById("tabContent1").style.display = 'none';
			document.getElementById("tabContent2").style.display = 'none';
			document.getElementById("tabContent3").style.display = 'none';
			if (!(document.getElementById("tabContent4")===null)) {
				document.getElementById("tabContent4").style.display = 'none';
			}
			if (!(document.getElementById("tabContent5")===null)) {
				document.getElementById("tabContent5").style.display = '';
			}
		break;
	}
}