var tabs = ["tab1","tab2","tab3","tab4"];
var tabBods = ["tab1bod","tab2bod","tab3bod","tab4bod"];

function showTab(id){
	//var tabs = document.getElementsByName("tab");
	for(i=0;i<tabs.length;i++){
		//tabs[i].className = "cssnav";
		document.getElementById(tabs[i]).className = "cssnav";
	}
	//var tabBods = document.getElementsByName("tabBod");
	for(i=0;i<tabBods.length;i++){
		//tabBods[i].style.display = "none";
		document.getElementById(tabBods[i]).style.display = "none";
	}
	var tabBody = id + "bod";
	document.getElementById(tabBody).style.display = "inline";
	document.getElementById(id).className = "navCurrTab";
}