function changeTabDescription(tabNumber, numberOfTabs) {

    for (var i=1; i<=numberOfTabs; i++) {
		if (tabNumber != i){
			document.getElementById('tabS'+i).style.display = "none";
			document.getElementById('tabU'+i).style.display = "block";
			document.getElementById('tabC'+i).style.display = "none";
		} else{
			document.getElementById('tabS'+i).style.display = "block";
			document.getElementById('tabU'+i).style.display = "none";
			document.getElementById('tabC'+i).style.display = "block";
		}
    }
	
}