// JavaScript Document
	
function changeTab (thisTab) {
	
	//var mytab=thisTab;
	//alert (document.getElementById("tab4").style.background);
	//alert(mytab);
	// One case for each tab
	// Each case controls the visibility and look of the text and tab
	switch (thisTab)
	{
		case "tab1":
			
			document.getElementById('tab4Info').style.display = "none";
			document.getElementById('tab3Info').style.display = "none";
			document.getElementById('tab2Info').style.display = "none";
			document.getElementById('tab1Info').style.display = "block";
			break;
			
		case "tab2":
			document.getElementById('tab4Info').style.display = "none";
			document.getElementById('tab3Info').style.display = "none";
			document.getElementById('tab2Info').style.display = "block";
			document.getElementById('tab1Info').style.display = "none";
			break;
		
		case "tab3":
			document.getElementById('tab4Info').style.display = "none";
			document.getElementById('tab3Info').style.display = "block";
			document.getElementById('tab2Info').style.display = "none";
			document.getElementById('tab1Info').style.display = "none";
			break;
		
		case "tab4":
			document.getElementById('tab4Info').style.display = "block";
			document.getElementById('tab3Info').style.display = "none";
			document.getElementById('tab2Info').style.display = "none";
			document.getElementById('tab1Info').style.display = "none";
			break;
		
		  
		//default:
		//  document.getElementById(whichBlock).style.visibility = "hidden";
	}
	
	
	
}



function unHide(obj) {
	var el = document.getElementById(obj);
	if ( el.style.display != "block" ) {
		el.style.display = 'block';
	}
	else {
		el.style.display = '';
	}
}