function GetParam(name)
{
	  var start=location.search.indexOf("?"+name+"=");
	  if (start<0) start=location.search.indexOf("&"+name+"=");
	  if (start<0) return "";
	  start += name.length+2;
	  var end=location.search.indexOf("&",start)-1;
	  if (end<0) end=location.search.length;
	  var result=location.search.substring(start,end);
	  var result="";
	  for(var i=start;i<=end;i++) {
		var c=location.search.charAt(i);
		result=result+(c=="+"?" ":c);
	  }
	  return unescape(result);
}

String.prototype.htmlEntities = function()
{
  var chars = new Array ('&','à','á','â','ã','ä','å','æ','ç','è','é',
                         'ê','ë','ì','í','î','ï','ð','ñ','ò','ó','ô',
                         'õ','ö','ø','ù','ú','û','ü','ý','þ','ÿ','À',
                         'Á','Â','Ã','Ä','Å','Æ','Ç','È','É','Ê','Ë',
                         'Ì','Í','Î','Ï','Ð','Ñ','Ò','Ó','Ô','Õ','Ö',
                         'Ø','Ù','Ú','Û','Ü','Ý','Þ','€','\"','ß','<',
                         '>','¢','£','¤','¥','¦','§','¨','©','ª','«',
                         '¬','­','®','¯','°','±','²','³','´','µ','¶',
                         '·','¸','¹','º','»','¼','½','¾','’','▪','˜');

  var entities = new Array ('amp','agrave','aacute','acirc','atilde','auml','aring',
                            'aelig','ccedil','egrave','eacute','ecirc','euml','igrave',
                            'iacute','icirc','iuml','eth','ntilde','ograve','oacute',
                            'ocirc','otilde','ouml','oslash','ugrave','uacute','ucirc',
                            'uuml','yacute','thorn','yuml','Agrave','Aacute','Acirc',
                            'Atilde','Auml','Aring','AElig','Ccedil','Egrave','Eacute',
                            'Ecirc','Euml','Igrave','Iacute','Icirc','Iuml','ETH','Ntilde',
                            'Ograve','Oacute','Ocirc','Otilde','Ouml','Oslash','Ugrave',
                            'Uacute','Ucirc','Uuml','Yacute','THORN','euro','quot','szlig',
                            'lt','gt','cent','pound','curren','yen','brvbar','sect','uml',
                            '#169','ordf','laquo','not','shy','reg','macr','deg','plusmn',
                            'sup2','sup3','acute','micro','para','middot','cedil','sup1',
                            'ordm','raquo','frac14','frac12','frac34','rsquo','#9642','tilde');

  newString = this;
  for (var i = 0; i < chars.length; i++)
  {
    myRegExp = new RegExp();
    myRegExp.compile(chars[i],'g');
    newString = newString.replace (myRegExp, '&' + entities[i] + ';');
  }
  
  return newString;
}


String.prototype.htmlEntitiesDecode = function()
{
  var chars = new Array ('&','à','á','â','ã','ä','å','æ','ç','è','é',
                         'ê','ë','ì','í','î','ï','ð','ñ','ò','ó','ô',
                         'õ','ö','ø','ù','ú','û','ü','ý','þ','ÿ','À',
                         'Á','Â','Ã','Ä','Å','Æ','Ç','È','É','Ê','Ë',
                         'Ì','Í','Î','Ï','Ð','Ñ','Ò','Ó','Ô','Õ','Ö',
                         'Ø','Ù','Ú','Û','Ü','Ý','Þ','€','\"','ß','<',
                         '>','¢','£','¤','¥','¦','§','¨','©','ª','«',
                         '¬','­','®','¯','°','±','²','³','´','µ','¶',
                         '·','¸','¹','º','»','¼','½','¾','’','▪','˜');

  var entities = new Array ('amp','agrave','aacute','acirc','atilde','auml','aring',
                            'aelig','ccedil','egrave','eacute','ecirc','euml','igrave',
                            'iacute','icirc','iuml','eth','ntilde','ograve','oacute',
                            'ocirc','otilde','ouml','oslash','ugrave','uacute','ucirc',
                            'uuml','yacute','thorn','yuml','Agrave','Aacute','Acirc',
                            'Atilde','Auml','Aring','AElig','Ccedil','Egrave','Eacute',
                            'Ecirc','Euml','Igrave','Iacute','Icirc','Iuml','ETH','Ntilde',
                            'Ograve','Oacute','Ocirc','Otilde','Ouml','Oslash','Ugrave',
                            'Uacute','Ucirc','Uuml','Yacute','THORN','euro','quot','szlig',
                            'lt','gt','cent','pound','curren','yen','brvbar','sect','uml',
                            '#169','ordf','laquo','not','shy','reg','macr','deg','plusmn',
                            'sup2','sup3','acute','micro','para','middot','cedil','sup1',
                            'ordm','raquo','frac14','frac12','frac34','rsquo','#9642','tilde');

  newString = this;
    var myRegExp;
  var isOpera = (navigator.userAgent.toLowerCase().indexOf('opera')>-1);
  if (isOpera)
  {
          for (var i = 0; i < chars.length; i++)
          {
            myRegExp = new RegExp();
            myRegExp.compile('&' + entities[i] + ';','g');
            while (newString.toLowerCase().indexOf('&' + entities[i] + ';')>-1)
                newString = newString.replace (myRegExp, chars[i]);
          }
  }
  else //other than opera
  {

          for (var i = 0; i < chars.length; i++)
          {
            myRegExp = new RegExp();
            myRegExp.compile('&' + entities[i] + ';','g');
            newString = newString.replace (myRegExp, chars[i]);
          }
  }
  
  return newString;
}
String.prototype.trim = function()
{
	return this.replace( /(^\s*)|(\s*$)/g, '' ) ;
}
String.prototype.ltrim = function()
{
	return this.replace( /^\s*/g, '' ) ;
}

String.prototype.rtrim = function()
{
	return this.replace( /\s*$/g, '' ) ;
}