var OpenedSportName = "";

function ShowNav(SportName)
{
    var oDivNavId = document.getElementById("navContainer");

    HideNavs("subNav");

    if (OpenedSportName != SportName)
    {
 	    var oDivId = document.getElementById( SportName );
        oDivId.style.display = "block";
        OpenedSportName = SportName;
    }
    else
    {
        OpenedSportName = "";
    }
}

function HideNavs(ClassName)
{
 	var oDiv = getElementsByClass(ClassName);
        
    for (var i = 0, j = oDiv.length; i < j; i++)
    {
        oDiv[i].style.display = 'none';
    }    
}

function ShowBlock(x)
{
    if (document.getElementById(x).style.display == "block")
    {
        document.getElementById(x).style.display = "none";
    }
    else
    {
        document.getElementById(x).style.display = "block";
    }
}

function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp('(^|\\s)'+searchClass+'(\\s|$)');
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}