function fixedwin(wname,w,h){

	var file_path;
	var pos = "";
	var features;

	browser = new Object();

	if(navigator.appName.indexOf("Netscape") != -1) {
		browser.isNetscape = true;
	} else if(navigator.appName.indexOf("Microsoft") != -1) {
		browser.isMicrosoft = true;
	}

	var width = w;
	var height = h;
	var fixWidth = 8;
	var fixHeight = 28;
	var screenHeight = screen.availHeight-fixHeight;
	var screenWidth = screen.availWidth-fixWidth;

	//get position of window based on browser
	if(browser.isNetscape) {
		pos = ",screenX="+(screenWidth - width)/2+",screenY="+(screenHeight - height)/2;
	} else {
		pos = ",left="+(screenWidth - width)/2+", top="+(screenHeight - height)/2;
	}

	features = "width="+width+",height="+height+pos+",scrollbars=no";

	//open new window
	mainwindow = window.open(wname,window.name,features);
	if(mainwindow != null) {
		mainwindow.focus() ;
	}
}