var run=1;  
function search_Performer() { 
  var ok=1;
  var rc='1px solid #ff0000',orc='1px solid #000',lc='2px solid #ff0000',olc='1px solid #ced0a2';
  var rb='#FFCCCC',orb='#333';

  if(undefined===document.forms['search_perfom']) {clearInterval(search_perfomer_interval); return;} 
  
  if(run) {   
    var frm=document.forms['search_perfom'];
 
    var search=frm.elements['searchPerformer'];
    var searchRE=/[^a-zA-Z0-9_.,()\-\!\?\n\r\'\`\& ]/;
    if(searchRE.test(search.value)){search.style.backgroundColor=rb;ok=0;}else {search.style.backgroundColor=orb;}  

    if (!search.value) ok=0;
    if(ok==1) document.getElementById('image_search').disabled=false;else document.getElementById('image_search').disabled=true;
  }
}