function v_img(f_img,tit){
var ancho=100+40;
var alto=100+40;
var left=200+Math.random()*50;
var top=150+Math.random()*20;
var nomv=tit;
while(nomv.indexOf(' ')>-1) nomv=nomv.replace(' ','_')
while(nomv.indexOf('.')>-1) nomv=nomv.replace('.','_')
while(nomv.indexOf('-')>-1) nomv=nomv.replace('-','_');
while(nomv.indexOf('(')>-1) nomv=nomv.replace('(','_');
while(nomv.indexOf(')')>-1) nomv=nomv.replace(')','_');
var w=window.open('',nomv,'left='+left+',top='+top+',width='+ancho+',height='+alto+',toolbar=0,location=0,directories=0,status=0,menuBar=0,scrollBars=1,resizable=1,resizeable=1');
w.document.write('FPCPA. '+tit+'');
w.document.write('');
w.document.close();
w.focus();
}