function check_fbhome(){ 
    var ofires = document.fbhome.ofi_nres.value; 
    if (ofires.indexOf('-')==-1){ 
        errorear(20601);
        document.fbhome.ofi_nres.focus(); return; 
    } else {
        document.fbhome.ofi.value = ofires.substring(0,ofires.indexOf('-'));
        document.fbhome.nres.value = ofires.substring(ofires.indexOf('-')+1, ofires.length); 
    }    
    if (!comprobarEmail(document.fbhome.email)){ document.fbhome.email.focus(); return; }     
    document.fbhome.email.value=document.fbhome.email.value.toLowerCase();
    document.fbhome.submit(); 
}