var azWin = '     ¨               ¸       ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ' 
var azKoi = '¸                ¨           þàáöäåôãõèéêëìíîïÿðñòóæâüûçøýù÷úÞÀÁÖÄÅÔÃÕÈÉÊËÌÍÎÏßÐÑÒÓÆÂÜÛÇØÝÙ×Ú' 
var AZ=azWin 
var azURL = '0123456789ABCDEF' 
var b64s  = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' 
var b64a  = b64s.split('') 
function enBASE64(str) { 
  var a=Array(), i 
  for( i=0; i<str.length; i++ ){ 
    var cch=str.charCodeAt(i) 
    if( cch>127 ){  cch=AZ.indexOf(str.charAt(i))+163; if(cch<163) continue; } 
    a.push(cch) 
  }; 
  var s=Array(), lPos = a.length - a.length % 3 
  for(i=0;i<lPos;i+=3){ 
    var t=(a[i]<<16)+(a[i+1]<<8)+a[i+2] 
    s.push( b64a[(t>>18)&0x3f]+b64a[(t>>12)&0x3f]+b64a[(t>>6)&0x3f]+b64a[t&0x3f] ) 
  } 
  switch ( a.length-lPos ) { 
    case 1 : var t=a[lPos]<<4; s.push(b64a[(t>>6)&0x3f]+b64a[t&0x3f]+'=='); break 
    case 2 : var t=(a[lPos]<<10)+(a[lPos+1]<<2); s.push(b64a[(t>>12)&0x3f]+b64a[(t>>6)&0x3f]+b64a[t&0x3f]+'='); break 
  } 
  return s.join('') 
} 
function deBASE64(str) { 
  while(str.substr(-1,1)=='=')str=str.substr(0,str.length-1); 
  var b=str.split(''), i 
  var s=Array(), t 
  var lPos = b.length - b.length % 4 
  for(i=0;i<lPos;i+=4){ 
    t=(b64s.indexOf(b[i])<<18)+(b64s.indexOf(b[i+1])<<12)+(b64s.indexOf(b[i+2])<<6)+b64s.indexOf(b[i+3]) 
    s.push( ((t>>16)&0xff), ((t>>8)&0xff), (t&0xff) ) 
  } 
  if( (b.length-lPos) == 2 ){ t=(b64s.indexOf(b[lPos])<<18)+(b64s.indexOf(b[lPos+1])<<12); s.push( ((t>>16)&0xff)); } 
  if( (b.length-lPos) == 3 ){ t=(b64s.indexOf(b[lPos])<<18)+(b64s.indexOf(b[lPos+1])<<12)+(b64s.indexOf(b[lPos+2])<<6); s.push( ((t>>16)&0xff), ((t>>8)&0xff) ); } 
  for( i=s.length-1; i>=0; i-- ){ 
    if( s[i]>=168 ) s[i]=AZ.charAt(s[i]-163) 
    else s[i]=String.fromCharCode(s[i]) 
  }; 
  return s.join('') 
} 
function ajaxpreview(objname) { 
     var ajax = new tbdev_ajax(); 
     ajax.onShow (''); 
     var varsString = ""; 
     ajax.requestFile = "preview.php?ajax"; 
    var txt = enBASE64(document.getElementById(objname).value); 
     ajax.setVar("msg", txt); 
     ajax.method = 'POST'; 
     ajax.element = 'preview'; 
     ajax.sendAJAX(varsString); 

}