var captcha_count = 0;
		
		function trim(str){
			str = str.replace( /^\s+/g, "" );
			str = str.replace( /\s+$/g, "" );
			
			return str;
		}
		function createCookie(name, value, days){
			if(days){
				var date = new Date();
				date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
				var expires = "; expires=" + date.toGMTString();
			}else{
				var expires = "";
			}
			
			document.cookie = name + "=" + value + expires + "; path=/";
		}
		
		function readCookie(name){ 
			var nameEQ = name + "=";
			var ca = document.cookie.split(';');
			
			for(var i=0;i < ca.length; i++){
				var c = ca[i];
				while(c.charAt(0)==' '){
					c = c.substring(1, c.length);
				}
				if(c.indexOf(nameEQ) == 0){
					return c.substring(nameEQ.length, c.length);
				}
			}
			
			return 'null';
		}
		
		
		function eraseCookie(name){
			createCookie(name, "", -1);
		}
		
		
		function insertAfter(newElement, targetElement){
			var parent = targetElement.parentNode;
			
			if(parent.lastchild == targetElement){
				parent.appendChild(newElement);
			}else{
				parent.insertBefore(newElement, targetElement.nextSibling);
			}
		}
		
		var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

function encode64(input) {
   var output = "";
   var chr1, chr2, chr3;
   var enc1, enc2, enc3, enc4;
   var i = 0;

   do {
      chr1 = input.charCodeAt(i++);
      chr2 = input.charCodeAt(i++);
      chr3 = input.charCodeAt(i++);

      enc1 = chr1 >> 2;
      enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
      enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
      enc4 = chr3 & 63;

      if (isNaN(chr2)) {
         enc3 = enc4 = 64;
      } else if (isNaN(chr3)) {
         enc4 = 64;
      }

      output = output + keyStr.charAt(enc1) + keyStr.charAt(enc2) + 
         keyStr.charAt(enc3) + keyStr.charAt(enc4);
   } while (i < input.length);
   
   return output;
}

function decode64(input) {
   var output = "";
   var chr1, chr2, chr3;
   var enc1, enc2, enc3, enc4;
   var i = 0;

   // remove all characters that are not A-Z, a-z, 0-9, +, /, or =
   input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");

   do {
      enc1 = keyStr.indexOf(input.charAt(i++));
      enc2 = keyStr.indexOf(input.charAt(i++));
      enc3 = keyStr.indexOf(input.charAt(i++));
      enc4 = keyStr.indexOf(input.charAt(i++));

      chr1 = (enc1 << 2) | (enc2 >> 4);
      chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
      chr3 = ((enc3 & 3) << 6) | enc4;

      output = output + String.fromCharCode(chr1);

      if (enc3 != 64) {
         output = output + String.fromCharCode(chr2);
      }
      if (enc4 != 64) {
         output = output + String.fromCharCode(chr3);
      }
   } while (i < input.length);

   return output;
}