function openContent( url, width, height, target ) {
	var w = window;
	if (isUndefined(width))
		width = w.screen.width;
		//width = screen.availWidth;
	if (isUndefined(height))
		height = w.screen.height;
		//height = screen.availHeight;
	if (isUndefined(target))
		target = "_blank";
	if (!isEmpty(w.top))
		w = w.top;
	var left = 0;
	var top = 0;
	var params = "height="+height+",width="+width
		+",left="+left+",top="+top
		+",location=0,menubar=0,resizeable=1,scrollbars=1,status=0,titlebar=0";
	if (w.open( url, target, params )) 
		return false;
	else 
		return true;
}

function openGlossary( url ) {
	width = 760;
	height = 480;
	target = "_blank";
	var w = window;
	if (!isEmpty(w.top))
		w = w.top;
	var left = (w.screen.width-width)/2;
	var top = w.screen.height*0.4-height/2;
	var params = "height="+height+",width="+width
		+",left="+left+",top="+top
		+",location=0,menubar=0,resizeable=1,scrollbars=1,status=0,titlebar=0";
	if (w.open( url, target, params )) 
		return false;
	else 
		return true;
}

function openHelp( url, width, height, target ) {
	var w = window;
	if (isUndefined(width))
		width = w.screen.width;
		//width = screen.availWidth;
	if (isUndefined(height))
		height = w.screen.height;
		//height = screen.availHeight;
	if (isUndefined(target))
		target = "_blank";
	if (!isEmpty(w.top))
		w = w.top;
	var left = 0;
	var top = 0;
	var params = "height="+height+",width="+width
		+",left="+left+",top="+top
		+",location=0,menubar=0,resizeable=1,scrollbars=1,status=0,titlebar=0";
	if (w.open( url, target, params )) 
		return false;
	else 
		return true;
}