function abrir(theURL){ 
alto=750;
ancho=700;
PosX = (screen.availWidth - ancho)/2;
PosY = (screen.availHeight - alto)/2;
poppup = 'width='+ancho+',height='+alto+',toolbar=no,location=no,directories=no,menubar=no,scrollbars=no,resizable=no,top='+PosY+',left='+PosX;
window.open(theURL,'',poppup) ;
 }

function abrir1(theURL){ 
alto=550;
ancho=778;
PosX = (screen.availWidth - ancho)/2;
PosY = (screen.availHeight - alto)/2;
poppup = 'width='+ancho+',height='+alto+',toolbar=no,location=no,directories=no,menubar=no,scrollbars=no,resizable=no,top='+PosY+',left='+PosX;
window.open(theURL,'',poppup) ;
 }
 
 function abrir2(theURL){ 
alto=380;
ancho=480;
PosX = (screen.availWidth - ancho)/2;
PosY = (screen.availHeight - alto)/2;
poppup = 'width='+ancho+',height='+alto+',toolbar=no,location=no,directories=no,menubar=no,scrollbars=no,resizable=no,top='+PosY+',left='+PosX;
window.open(theURL,'',poppup) ;
 }
 function acercar(theURL){ 
alto=768;
ancho=1024;
PosX = (screen.availWidth - ancho)/2;
PosY = (screen.availHeight - alto)/2;
poppup = 'width='+ancho+',height='+alto+',toolbar=no,location=no,directories=no,menubar=no,scrollbars=no,resizable=no,top='+PosY+',left='+PosX;
window.open(theURL,'',poppup) ;
 }
 function abrirfot(theURL){ 
alto=195;
ancho=700;
PosX = (screen.availWidth - ancho)/2;
PosY = (screen.availHeight - alto)/2;
poppup = 'width='+ancho+',height='+alto+',toolbar=no,location=no,directories=no,menubar=no,scrollbars=no,resizable=no,top='+PosY+',left='+PosX;
window.open(theURL,'',poppup) ;
 }