function activateTab(tabID)
{
	document.getElementById(tabID).className = "chains";
	document.getElementById(tabID + "tab").getElementsByTagName("a")[0].className = "active";
}
function deactivateTab(tabID)
{
	document.getElementById(tabID).className = "chains hidden";
	document.getElementById(tabID + "tab").getElementsByTagName("a")[0].className = "";
}


function downloadPOIList(){
	var selectedSys = document.getElementById("poiListTypes").value;
	if(selectedSys != "none"){
		window.open(selectedSys);
	}
}