function toPopup(obj, w, h, acao){


	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings = "height="+h+",width="+w+",top="+TopPosition+",left="+LeftPosition+",scrollbars=no,noresizable";

	janela = window.open("about:blank","janela_submit",settings); 

	if(janela == null)
		alert("Desative seu sistema de Anti-Popup !!!");
	else{
	
	
	obj.method = "post";
	obj.target = "janela_submit";	
	obj.action = acao; 
	obj.submit();
	obj.reset();


	}

}