var counter = 0;
var itemToDisplay = 1;
function Timer(){
    var currencyRandToDollarSpan = FindTagControl("div", "currencyRandToDollarSpan");
    var currencyRandToEuroSpan = FindTagControl("div", "currencyRandToEuroSpan");
    var currencyEuroToDollarSpan = FindTagControl("div", "currencyEuroToDollarSpan");
    var currencyHulaminShareSpan = FindTagControl("div", "currencyHulaminShare");
    if (currencyRandToDollarSpan != null && currencyRandToEuroSpan != null && currencyEuroToDollarSpan != null && currencyHulaminShareSpan != null){
        if (itemToDisplay == 1){
            currencyRandToDollarSpan.style.display = "none";
            currencyRandToEuroSpan.style.display = "";
            currencyEuroToDollarSpan.style.display = "none";
            currencyHulaminShareSpan.style.display = "none";
        }
        
        if (itemToDisplay == 2){
            currencyRandToDollarSpan.style.display = "none";
            currencyRandToEuroSpan.style.display = "none";
            currencyEuroToDollarSpan.style.display = "";
            currencyHulaminShareSpan.style.display = "none";
        }
        
        if (itemToDisplay == 3){
            currencyRandToDollarSpan.style.display = "";
            currencyRandToEuroSpan.style.display = "none";
            currencyEuroToDollarSpan.style.display = "none";
            currencyHulaminShareSpan.style.display = "none";
        }
        
        if (itemToDisplay == 4){
            currencyRandToDollarSpan.style.display = "none";
            currencyRandToEuroSpan.style.display = "none";
            currencyEuroToDollarSpan.style.display = "none";
            currencyHulaminShareSpan.style.display = "";
        }
    }
    
    itemToDisplay++;
    if (itemToDisplay > 4){
        itemToDisplay = 1;
    }
    
    setTimeout(Timer, 5000);
}