function change(chosen){
	var ul = document.getElementById("primary");
	var span = ul.getElementsByTagName("span");
	var ar = ul.getElementsByTagName("a");
	var arrayOfElements = concatCollections(span, ar);
	for (var i=0; i<arrayOfElements.length; i++){
		if (arrayOfElements[i].id != ""){
			if (arrayOfElements[i].id != chosen){
				hideoldframe("div" + arrayOfElements[i].id);
			}else{
				shownewframe("div" + chosen);
			}
		}
	}
}
function concatCollections() {
	var c, k, j, i = arguments.length;
	var a = [];
	for ( j=0; j<i; j++ ) {
		c = arguments[j];
		h = c.length;
		for ( k=0; k<h; k++ ){
			a.push(c[k]);
		}
	}
return a;
}
function minuteschange(chosen){
	var select = document.getElementById("select");
	var options = select.getElementsByTagName("option");
	var arrayOfElements = options;
	for (var i=0; i<arrayOfElements.length; i++){
		if (arrayOfElements[i].id != ""){
			if (arrayOfElements[i].id != chosen){
				hideoldframe("min" + arrayOfElements[i].id);
			}else{
				shownewframe("min" + chosen);
			}
		}
	}
}
function agendaschange(chosen){
	var select = document.getElementById("select");
	var options = select.getElementsByTagName("option");
	var arrayOfElements = options;
	for (var i=0; i<arrayOfElements.length; i++){
		if (arrayOfElements[i].id != ""){
			if (arrayOfElements[i].id != chosen){
				hideoldframe("agd" + arrayOfElements[i].id);
			}else{
				shownewframe("agd" + chosen);
			}
		}
	}
}
function newschange(chosen){
	var select = document.getElementById("select");
	var options = select.getElementsByTagName("option");
	var arrayOfElements = options;
	for (var i=0; i<arrayOfElements.length; i++){
		if (arrayOfElements[i].id != ""){
			if (arrayOfElements[i].id != chosen){
				hideoldframe("new" + arrayOfElements[i].id);
			}else{
				shownewframe("new" + chosen);
			}
		}
	}
}

function hideoldframe(hideID) {
	var hideContent = document.getElementById(hideID);
	hideContent.style.display = "none";
	}
function shownewframe(showID) {
	var showContent = document.getElementById(showID);
	showContent.style.display = "block";
	}