var getQueryString = function (paramName, url) {

		var i, len, idx, queryString, params, tokens;

		url = url || top.location.href;

		idx = url.indexOf("?");
		queryString = idx >= 0 ? url.substr(idx + 1) : url;

		// Remove the hash if any
		idx = queryString.lastIndexOf("#");
		queryString = idx >= 0 ? queryString.substr(0, idx) : queryString;

		params = queryString.split("&");

		for (i = 0, len = params.length; i < len; i++) {
			tokens = params[i].split("=");
			if (tokens.length >= 2) {
				if (tokens[0] === paramName) {
					return unescape(tokens[1]);
				}
			}
		}

		return null;
	};
	
	
	function base64_encode( data ) {
			
		var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
		var o1, o2, o3, h1, h2, h3, h4, bits, i = 0, ac = 0, enc="", tmp_arr = [];
	
		if (!data) {
			return data;
		}
	
		data = this.utf8_encode(data+'');
		
		do { // pack three octets into four hexets
			o1 = data.charCodeAt(i++);
			o2 = data.charCodeAt(i++);
			o3 = data.charCodeAt(i++);
	
			bits = o1<<16 | o2<<8 | o3;
	
			h1 = bits>>18 & 0x3f;
			h2 = bits>>12 & 0x3f;
			h3 = bits>>6 & 0x3f;
			h4 = bits & 0x3f;
	
			// use hexets to index into b64, and append result to encoded string
			tmp_arr[ac++] = b64.charAt(h1) + b64.charAt(h2) + b64.charAt(h3) + b64.charAt(h4);
		} while (i < data.length);
		
		enc = tmp_arr.join('');
		
		switch( data.length % 3 ){
			case 1:
				enc = enc.slice(0, -2) + '==';
			break;
			case 2:
				enc = enc.slice(0, -1) + '=';
			break;
		}
	
		return enc;
	}
	
	function utf8_decode ( str_data ) {

		var tmp_arr = [], i = 0, ac = 0, c1 = 0, c2 = 0, c3 = 0;
		
		str_data += '';
		
		while ( i < str_data.length ) {
			c1 = str_data.charCodeAt(i);
			if (c1 < 128) {
				tmp_arr[ac++] = String.fromCharCode(c1);
				i++;
			} else if ((c1 > 191) && (c1 < 224)) {
				c2 = str_data.charCodeAt(i+1);
				tmp_arr[ac++] = String.fromCharCode(((c1 & 31) << 6) | (c2 & 63));
				i += 2;
			} else {
				c2 = str_data.charCodeAt(i+1);
				c3 = str_data.charCodeAt(i+2);
				tmp_arr[ac++] = String.fromCharCode(((c1 & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
				i += 3;
			}
		}
	
		return tmp_arr.join('');
	}
	
	
	function base64_decode( data ) {
	
		var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
		var o1, o2, o3, h1, h2, h3, h4, bits, i = 0, ac = 0, dec = "", tmp_arr = [];
	
		if (!data) {
			return data;
		}
	
		data += '';
	
		do {  // unpack four hexets into three octets using index points in b64
			h1 = b64.indexOf(data.charAt(i++));
			h2 = b64.indexOf(data.charAt(i++));
			h3 = b64.indexOf(data.charAt(i++));
			h4 = b64.indexOf(data.charAt(i++));
	
			bits = h1<<18 | h2<<12 | h3<<6 | h4;
	
			o1 = bits>>16 & 0xff;
			o2 = bits>>8 & 0xff;
			o3 = bits & 0xff;
	
			if (h3 == 64) {
				tmp_arr[ac++] = String.fromCharCode(o1);
			} else if (h4 == 64) {
				tmp_arr[ac++] = String.fromCharCode(o1, o2);
			} else {
				tmp_arr[ac++] = String.fromCharCode(o1, o2, o3);
			}
		} while (i < data.length);
	
		dec = tmp_arr.join('');
		dec = this.utf8_decode(dec);
		
		return dec;
	}
	
	function urlencode( str ) {
								 
		var histogram = {}, unicodeStr='', hexEscStr='';
		var ret = (str+'').toString();
		
		var replacer = function(search, replace, str) {
			var tmp_arr = [];
			tmp_arr = str.split(search);
			return tmp_arr.join(replace);
		};
		
		// The histogram is identical to the one in urldecode.
		histogram["'"]   = '%27';
		histogram['(']   = '%28';
		histogram[')']   = '%29';
		histogram['*']   = '%2A';
		histogram['~']   = '%7E';
		histogram['!']   = '%21';
		histogram['%20'] = '+';
		histogram['\u00DC'] = '%DC';
		histogram['\u00FC'] = '%FC';
		histogram['\u00C4'] = '%D4';
		histogram['\u00E4'] = '%E4';
		histogram['\u00D6'] = '%D6';
		histogram['\u00F6'] = '%F6';
		histogram['\u00DF'] = '%DF';
		histogram['\u20AC'] = '%80';
		histogram['\u0081'] = '%81';
		histogram['\u201A'] = '%82';
		histogram['\u0192'] = '%83';
		histogram['\u201E'] = '%84';
		histogram['\u2026'] = '%85';
		histogram['\u2020'] = '%86';
		histogram['\u2021'] = '%87';
		histogram['\u02C6'] = '%88';
		histogram['\u2030'] = '%89';
		histogram['\u0160'] = '%8A';
		histogram['\u2039'] = '%8B';
		histogram['\u0152'] = '%8C';
		histogram['\u008D'] = '%8D';
		histogram['\u017D'] = '%8E';
		histogram['\u008F'] = '%8F';
		histogram['\u0090'] = '%90';
		histogram['\u2018'] = '%91';
		histogram['\u2019'] = '%92';
		histogram['\u201C'] = '%93';
		histogram['\u201D'] = '%94';
		histogram['\u2022'] = '%95';
		histogram['\u2013'] = '%96';
		histogram['\u2014'] = '%97';
		histogram['\u02DC'] = '%98';
		histogram['\u2122'] = '%99';
		histogram['\u0161'] = '%9A';
		histogram['\u203A'] = '%9B';
		histogram['\u0153'] = '%9C';
		histogram['\u009D'] = '%9D';
		histogram['\u017E'] = '%9E';
		histogram['\u0178'] = '%9F';
		
		// Begin with encodeURIComponent, which most resembles PHP's encoding functions
		ret = encodeURIComponent(ret);
	
		for (unicodeStr in histogram) {
			hexEscStr = histogram[unicodeStr];
			ret = replacer(unicodeStr, hexEscStr, ret); // Custom replace. No regexing
		}
		
		// Uppercase for full PHP compatibility
		return ret.replace(/(\%([a-z0-9]{2}))/g, function(full, m1, m2) {
			return "%"+m2.toUpperCase();
		});
	}
	
	function urldecode( str ) {
		
		var histogram = {}, ret = str.toString(), unicodeStr='', hexEscStr='';
		
		var replacer = function(search, replace, str) {
			var tmp_arr = [];
			tmp_arr = str.split(search);
			return tmp_arr.join(replace);
		};
		
		// The histogram is identical to the one in urlencode.
		histogram["'"]   = '%27';
		histogram['(']   = '%28';
		histogram[')']   = '%29';
		histogram['*']   = '%2A';
		histogram['~']   = '%7E';
		histogram['!']   = '%21';
		histogram['%20'] = '+';
		histogram['\u00DC'] = '%DC';
		histogram['\u00FC'] = '%FC';
		histogram['\u00C4'] = '%D4';
		histogram['\u00E4'] = '%E4';
		histogram['\u00D6'] = '%D6';
		histogram['\u00F6'] = '%F6';
		histogram['\u00DF'] = '%DF'; 
		histogram['\u20AC'] = '%80';
		histogram['\u0081'] = '%81';
		histogram['\u201A'] = '%82';
		histogram['\u0192'] = '%83';
		histogram['\u201E'] = '%84';
		histogram['\u2026'] = '%85';
		histogram['\u2020'] = '%86';
		histogram['\u2021'] = '%87';
		histogram['\u02C6'] = '%88';
		histogram['\u2030'] = '%89';
		histogram['\u0160'] = '%8A';
		histogram['\u2039'] = '%8B';
		histogram['\u0152'] = '%8C';
		histogram['\u008D'] = '%8D';
		histogram['\u017D'] = '%8E';
		histogram['\u008F'] = '%8F';
		histogram['\u0090'] = '%90';
		histogram['\u2018'] = '%91';
		histogram['\u2019'] = '%92';
		histogram['\u201C'] = '%93';
		histogram['\u201D'] = '%94';
		histogram['\u2022'] = '%95';
		histogram['\u2013'] = '%96';
		histogram['\u2014'] = '%97';
		histogram['\u02DC'] = '%98';
		histogram['\u2122'] = '%99';
		histogram['\u0161'] = '%9A';
		histogram['\u203A'] = '%9B';
		histogram['\u0153'] = '%9C';
		histogram['\u009D'] = '%9D';
		histogram['\u017E'] = '%9E';
		histogram['\u0178'] = '%9F';
	
		for (unicodeStr in histogram) {
			hexEscStr = histogram[unicodeStr]; // Switch order when decoding
			ret = replacer(hexEscStr, unicodeStr, ret); // Custom replace. No regexing
		}
		
		// End with decodeURIComponent, which most resembles PHP's encoding functions
		ret = decodeURIComponent(ret);
	
		return ret;
	}
	
	
	
	function utf8_encode ( argString ) {

		var string = (argString+'').replace(/\r\n/g, "\n").replace(/\r/g, "\n");
	
		var utftext = "";
		var start, end;
		var stringl = 0;
	
		start = end = 0;
		stringl = string.length;
		for (var n = 0; n < stringl; n++) {
			var c1 = string.charCodeAt(n);
			var enc = null;
	
			if (c1 < 128) {
				end++;
			} else if((c1 > 127) && (c1 < 2048)) {
				enc = String.fromCharCode((c1 >> 6) | 192) + String.fromCharCode((c1 & 63) | 128);
			} else {
				enc = String.fromCharCode((c1 >> 12) | 224) + String.fromCharCode(((c1 >> 6) & 63) | 128) + String.fromCharCode((c1 & 63) | 128);
			}
			if (enc !== null) {
				if (end > start) {
					utftext += string.substring(start, end);
				}
				utftext += enc;
				start = end = n+1;
			}
		}
	
		if (end > start) {
			utftext += string.substring(start, string.length);
		}
	
		return utftext;
	}
	

	
	function commonSetPage(frm,pageno)	{
		obj = eval("document."+frm);
		obj.page.value = pageno;
		//obj.action = "";
		obj.target ="_self";
		obj.submit();
	}

	function CheckEmailAddr(email)	{
	  var result = false;
	  var theStr = new String(email);
	  var index = theStr.indexOf("@");
	  if (index > 0)	{
		var pindex = theStr.indexOf(".",index);
		if ((pindex > index+1) && (theStr.length > pindex+1))
		result = true;
	  }
	  return result;
	}

	
	function explode( delimiter, string, limit ) {
	 
		var emptyArray = { 0: '' };
		
		// third argument is not required
		if ( arguments.length < 2 ||
			typeof arguments[0] == 'undefined' ||
			typeof arguments[1] == 'undefined' )
		{
			return null;
		}
	 
		if ( delimiter === '' ||
			delimiter === false ||
			delimiter === null )
		{
			return false;
		}
	 
		if ( typeof delimiter == 'function' ||
			typeof delimiter == 'object' ||
			typeof string == 'function' ||
			typeof string == 'object' )
		{
			return emptyArray;
		}
	 
		if ( delimiter === true ) {
			delimiter = '1';
		}
		
		if (!limit) {
			return string.toString().split(delimiter.toString());
		} else {
			// support for limit argument
			var splitted = string.toString().split(delimiter.toString());
			var partA = splitted.splice(0, limit - 1);
			var partB = splitted.join(delimiter.toString());
			partA.push(partB);
			return partA;
		}
	}
	
	function implode( glue, pieces ) {
		return ( ( pieces instanceof Array ) ? pieces.join( glue ) : pieces );
	}

	function in_array(needle, haystack, argStrict) {
		var key = '', strict = !!argStrict;
	
		if (strict) {
			for (key in haystack) {
				if (haystack[key] === needle) {
					return true;
				}
			}
		} else {
			for (key in haystack) {
				if (haystack[key] == needle) {
					return true;
				}
			}
		}
	
		return false;
	}