var run=1;  
function foto_check(foto_encod) { 
  var ok=1;
  var rc='1px solid #ff0000',orc='1px solid #cccccc',lc='2px solid #ff0000',olc='1px solid #ced0a2';
  var rb='#FFCCCC',orb='#FFFFFF';
  
  var ImageName=parent.frames['main'].document.getElementById('fname_'+foto_encod);
  var ImageNameRE=/[^a-zA-Z0-9_.,()\-\!\?\n\r\'\`\& ]/;
  nameBTN='imgF_'+foto_encod;  
  var pic = parent.frames['main'].document.getElementById(nameBTN);
  pic.disabled = false; 
  if(ImageNameRE.test(ImageName.value)){ImageName.style.backgroundColor=rb;ok=0;} else {ImageName.style.backgroundColor=orb;}  
   
  if (ok==0) {pic.disabled = true;} else {pic.disabled = false;}
}