function nuevaventana(thePage,name,wt,ht,sc,res){ 
	leftPos= (screen.width-wt)/6 
	topPos = (screen.height-ht)/6 
	eval("win_"+name+" = window.open(thePage,name,'toolbars=yes, resizable='+res+',scrollbars="+sc+",left="+leftPos+",top="+topPos+",width="+wt+",height="+ht+"')");
} 

function validarEmail(valor) {
  if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(valor)){
    return (true)
  } else {
    return (false);
  }
}

function borrar()
{
	document.forms[0].reset();
}