<!--Início Janela Ver Foto Zoom
function ampliar_imagem(URL, width, height) {
	
   var left = 50;
   var top = 50;

   window.open(URL, '', 'width='+width+', height='+height+', top='+top+', left='+left+', scrollbars=auto, status=no, toolbar=no, location=no, directories=no, menubar=no, resizable=no, fullscreen=no');
}
//-->Termino Janela Ver Foto Zoom


<!-- Início PopUp Central -->
function abrir_popup(URL, width, height) {
	var larguratela = screen.width;
	var alturatela = screen.height;
	var largurajanela = 600;
	var alturajanela = 590;
	
	var iniciolargura = (larguratela - largurajanela) / 2;
	var inicioaltura = (alturatela-alturajanela) / 2;
	

   window.open(URL, '', 'width='+largurajanela+', height='+alturajanela+', top='+inicioaltura+', left='+iniciolargura+',  scrollbars=yes, status=no, toolbar=no, location=no, directories=no, menubar=no, resizable=no, fullscreen=no');
}
<!-- Final PopUp Central -->