//inicia funcao para abrir novas janelas
	function openWin( windowURL, windowName, windowFeatures ) { 
		return window.open( windowURL, windowName, windowFeatures ) ; 
	} 

//Exemplo de chamada para esta funcao
//<A href="JavaScript: newWindow = openWin( 'pagina.asp', 'nomedajanela', 'width=255,height=170,toolbar=0,location=0,directories=0,status=0,menuBar=0,scrollBars=1,resizable=0,left=0,top=0' ); newWindow.focus()" onMouseOver="window.status='O mapa da sua navega&ccedil;&atilde;o'; return true;" onMouseOut="window.status=''; return true;">