function popup(url,x,y,name,sb,rs,st,lt,tb) {
	var win = null;
	var centerwidth=(screen.width/2)-(x/2);
	var centerheight=(screen.height/2)-(y/2);
	var scrollbarstext = 'scrollbars = yes,';
	var resizabletext = 'resizable = no,';
	var statustext = 'status = no,';
	var locationtext = 'location = no,';
	var toolbartext = 'toolbar = no,';
	var features = '';
	if (sb == 1){
		scrollbarstext = 'scrollbars = yes,'
	}
	if (rs == 1){
		resizabletext = 'resizable = yes,'
	}
	if (st == 1){
		statustext = 'status = yes,'
	}
	if (lt == 1){
		locationtext = 'location = yes,'
	}
	if (tb == 1){
		toolbartext = 'toolbar = yes,'
	}
	features = scrollbarstext+resizabletext+statustext;
	features = features + locationtext+toolbartext;
	features = features + 'width = '+x+',height = '+y;
	features = features + ',top = ' + centerheight;
	features = features + ',left = ' + centerwidth;
	win = window.open(url, name, features);
}