function gotoPage(url, newWin) {
	if (newWin)
		window.open(url);
	else
		window.location = url;
}

function gotoTop() {
	document.getElementById('page_content').scrollTop = 0;
}

function changeClass(obj, newClass) {
	obj.className = newClass;	
}

function showDropDown(dropId) {
	ddObj = document.getElementById("dd_"+dropId);
	
	if (ddObj != null) {
		ddObj.style.display = (ddObj.style.display == 'block') ? 'none':'block';	
	}
}

function hideDropDown(dropId) {
	ddObj = document.getElementById("dd_"+dropId);
	
	if (ddObj != null) {
		ddObj.style.display = 'none';	
	}
}

function toggle(elemId) {
	var elem = document.getElementById(elemId);
	
	if (elem != null) {
		if (elem.style.display == "none") {
			elem.style.display = "";
		} else {
			elem.style.display = "none";	
		}
	}
}