function sw(objName,onoff) {
	var e = document.getElementById(objName);
	if (onoff == 1) {
	
		if (e.overFileName == null) {
			e.myFileName = e.src;
			var extStart = 0;
			if (e.src.indexOf(".gif") > 1) {
				extStart = e.src.indexOf(".gif");
			} else if (e.src.indexOf(".jpg") > 1) {
				extStart = e.src.indexOf(".jpg");
			} else {
				extStart = e.src.indexOf(".png");
			}
			var overFileName = e.src.substr(0,extStart) + "_over" + e.src.substr(extStart,e.src.length);
			e.overFileName = overFileName;
		}

		e.src = e.overFileName;
		
	} else {
		e.src = e.myFileName;
	}
}

function swn(objName,picFileName) {

	var e = document.getElementById(objName);
	e.src = picFileName;

}

function openWin(url,w,h) {
	
	window.open(url,"erd","height=" + h + ",width=" + w + ",menubar=no,toolbar=no,scrollbars=yes,titlebar=no");
	
}

function fixMail(obj) {
	
	originalString = obj.href;
	newString = originalString.substr(0,originalString.length-5);
	newString += "er-d.org";
	obj.href = newString;
	
}