/**
 * @author JoaoKs
 */
function abre_janela(width, height, nome, scrollbar,locald) {
			var top;
			var left;
			top = ( (screen.height/2) - (height/2) )
			left = ( (screen.width/2) - (width/2) )
			window.open(locald,nome,'width='+width+',height='+height+',scrollbars='+scrollbar+',toolbar=no,location=no,status=no,menubar=no,resizable=no,left='+left+',top='+top);
}