function loadFrameSet() {
	var loadDoc=location.search;
	// if there is a document to load into frameset - do it
	if(loadDoc) {
		// get filename of current file
		crntFile = loadDoc.substring(1,loadDoc.length);
    	// extract name of section (everything before first dot or underscore)
	    var baseRgxp = /(^.+)\./;
	    baseRgxp.exec(crntFile);   
	    var baseName = RegExp.$1;
	    var baseRgxp = /(^.+)\_/;
	    baseRgxp.exec(baseName);   
	    var baseName = RegExp.$1;
	   
	    // call sub Frameset with parameter
    	var subFrameSet = baseName + "_frameset.html?" + crntFile;
		frames.ZTCMbodyFrame.location.href = subFrameSet;
	}
}