/*
function insertAtCursor(myField, myValue)
{
	//IE support
	if (document.selection) {
		myField.focus();
		sel = document.selection.createRange();
		sel.text = myValue;
	}
	//MOZILLA/NETSCAPE support
	else if (myField.selectionStart || myField.selectionStart == .0.)
	{
		var startPos = myField.selectionStart;
		var endPos = myField.selectionEnd;
		myField.value = myField.value.substring(0, startPos) + myValue + myField.value.substring(endPos, myField.value.length);
	}
	else
	{
		myField.value += myValue;
	}
}
*/

// this function sucks ass and is superinefficient, but hey, it does the trick! ;)
function htmlencode (str) {
	str = str.replace(/&/g, "&");
	str = str.replace(/</g, "&lt;");
	str = str.replace(/>/g, "&gt;");
	str = str.replace(/\x22/g, "&quot;");
	str=str.replace(/\xA0/g, "&nbsp;");
	str=str.replace(/\xA1/g, "&iexcl;");
	str=str.replace(/\xA2/g, "&cent;");
	str=str.replace(/\xA3/g, "&pound;");
	str=str.replace(/\xA4/g, "&curren;");
	str=str.replace(/\xA5/g, "&yen;");
	str=str.replace(/\xA6/g, "&brvbar;");
	str=str.replace(/\xA7/g, "&sect;");
	str=str.replace(/\xA8/g, "&uml;");
	str=str.replace(/\xA9/g, "&copy;");
	str=str.replace(/\xAA/g, "&ordf;");
	str=str.replace(/\xAB/g, "&laquo;");
	str=str.replace(/\xAC/g, "&not;");
	str=str.replace(/\xAD/g, "&shy;");
	str=str.replace(/\xAE/g, "&reg;");
	str=str.replace(/\xAF/g, "&macr;");
	str=str.replace(/\xB0/g, "&deg;");
	str=str.replace(/\xB1/g, "&plusmn;");
	str=str.replace(/\xB2/g, "&sup2;");
	str=str.replace(/\xB3/g, "&sup3;");
	str=str.replace(/\xB4/g, "&acute;");
	str=str.replace(/\xB5/g, "&micro;");
	str=str.replace(/\xB6/g, "&para;");
	str=str.replace(/\xB7/g, "&middot;");
	str=str.replace(/\xB8/g, "&cedil;");
	str=str.replace(/\xB9/g, "&sup1;");
	str=str.replace(/\xBA/g, "&ordm;");
	str=str.replace(/\xBB/g, "&raquo;");
	str=str.replace(/\xBC/g, "&frac14;");
	str=str.replace(/\xBD/g, "&frac12;");
	str=str.replace(/\xBE/g, "&frac34;");
	str=str.replace(/\xBF/g, "&iquest;");
	str=str.replace(/\xC0/g, "&Agrave;");
	str=str.replace(/\xC1/g, "&Aacute;");
	str=str.replace(/\xC2/g, "&Acirc;");
	str=str.replace(/\xC3/g, "&Atilde;");
	str=str.replace(/\xC4/g, "&Auml;");
	str=str.replace(/\xC5/g, "&Aring;");
	str=str.replace(/\xC6/g, "&AElig;");
	str=str.replace(/\xC7/g, "&Ccedil;");
	str=str.replace(/\xC8/g, "&Egrave;");
	str=str.replace(/\xC9/g, "&Eacute;");
	str=str.replace(/\xCA/g, "&Ecirc;");
	str=str.replace(/\xCB/g, "&Euml;");
	str=str.replace(/\xCC/g, "&Igrave;");
	str=str.replace(/\xCD/g, "&Iacute;");
	str=str.replace(/\xCE/g, "&Icirc;");
	str=str.replace(/\xCF/g, "&Iuml;");
	str=str.replace(/\xD0/g, "&ETH;");
	str=str.replace(/\xD1/g, "&Ntilde;");
	str=str.replace(/\xD2/g, "&Ograve;");
	str=str.replace(/\xD3/g, "&Oacute;");
	str=str.replace(/\xD4/g, "&Ocirc;");
	str=str.replace(/\xD5/g, "&Otilde;");
	str=str.replace(/\xD6/g, "&Ouml;");
	str=str.replace(/\xD7/g, "&times;");
	str=str.replace(/\xD8/g, "&Oslash;");
	str=str.replace(/\xD9/g, "&Ugrave;");
	str=str.replace(/\xDA/g, "&Uacute;");
	str=str.replace(/\xDB/g, "&Ucirc;");
	str=str.replace(/\xDC/g, "&Uuml;");
	str=str.replace(/\xDD/g, "&Yacute;");
	str=str.replace(/\xDE/g, "&THORN;");
	str=str.replace(/\xDF/g, "&szlig;");
	str=str.replace(/\xE0/g, "&agrave;");
	str=str.replace(/\xE1/g, "&aacute;");
	str=str.replace(/\xE2/g, "&acirc;");
	str=str.replace(/\xE3/g, "&atilde;");
	str=str.replace(/\xE4/g, "&auml;");
	str=str.replace(/\xE5/g, "&aring;");
	str=str.replace(/\xE6/g, "&aelig;");
	str=str.replace(/\xE7/g, "&ccedil;");
	str=str.replace(/\xE8/g, "&egrave;");
	str=str.replace(/\xE9/g, "&eacute;");
	str=str.replace(/\xEA/g, "&ecirc;");
	str=str.replace(/\xEB/g, "&euml;");
	str=str.replace(/\xEC/g, "&igrave;");
	str=str.replace(/\xED/g, "&iacute;");
	str=str.replace(/\xEE/g, "&icirc;");
	str=str.replace(/\xEF/g, "&iuml;");
	str=str.replace(/\xF0/g, "&eth;");
	str=str.replace(/\xF1/g, "&ntilde;");
	str=str.replace(/\xF2/g, "&ograve;");
	str=str.replace(/\xF3/g, "&oacute;");
	str=str.replace(/\xF4/g, "&ocirc;");
	str=str.replace(/\xF5/g, "&otilde;");
	str=str.replace(/\xF6/g, "&ouml;");
	str=str.replace(/\xF7/g, "&divide;");
	str=str.replace(/\xF8/g, "&oslash;");
	str=str.replace(/\xF9/g, "&ugrave;");
	str=str.replace(/\xFA/g, "&uacute;");
	str=str.replace(/\xFB/g, "&ucirc;");
	str=str.replace(/\xFC/g, "&uuml;");
	str=str.replace(/\xFD/g, "&yacute;");
	str=str.replace(/\xFE/g, "&thorn;");
	str=str.replace(/\xFF/g, "&yuml;");
	str=str.replace(/\x20AC/g, "&euro;");

	return str;
};


function urlencode( sInput )
{
	// The Javascript escape and unescape functions do not correspond
	// with what browsers actually do...
	var SAFECHARS = "0123456789" +					// Numeric
					"ABCDEFGHIJKLMNOPQRSTUVWXYZ" +	// Alphabetic
					"abcdefghijklmnopqrstuvwxyz" +
					"-_.!~*'()";					// RFC2396 Mark characters
	var HEX = "0123456789ABCDEF";

	var plaintext = sInput;
	var encoded = "";
	for (var i = 0; i < plaintext.length; i++ ) {
		var ch = plaintext.charAt(i);
	    if (ch == " ") {
		    encoded += "+";				// x-www-urlencoded, rather than %20
		} else if (SAFECHARS.indexOf(ch) != -1) {
		    encoded += ch;
		} else {
		    var charCode = ch.charCodeAt(0);
			if (charCode > 255) {
			    alert( "Unicode Character '"
                        + ch
                        + "' cannot be encoded using standard URL encoding.\n" +
				          "(URL encoding only supports 8-bit characters.)\n" +
						  "A space (+) will be substituted." );
				encoded += "+";
			} else {
				encoded += "%";
				encoded += HEX.charAt((charCode >> 4) & 0xF);
				encoded += HEX.charAt(charCode & 0xF);
			}
		}
	} // for

	return( encoded );
}

function urldecode( sInput )
{
   // Replace + with ' '
   // Replace %xx with equivalent character
   // Put [ERROR] in output if %xx is invalid.
   var HEXCHARS = "0123456789ABCDEFabcdef";
   var encoded = sInput;
   var plaintext = "";
   var i = 0;
   while (i < encoded.length) {
       var ch = encoded.charAt(i);
	   if (ch == "+") {
	       plaintext += " ";
		   i++;
	   } else if (ch == "%") {
			if (i < (encoded.length-2)
					&& HEXCHARS.indexOf(encoded.charAt(i+1)) != -1
					&& HEXCHARS.indexOf(encoded.charAt(i+2)) != -1 ) {
				plaintext += unescape( encoded.substr(i,3) );
				i += 3;
			} else {
				alert( 'Bad escape combination near ...' + encoded.substr(i) );
				plaintext += "%[ERROR]";
				i++;
			}
		} else {
		   plaintext += ch;
		   i++;
		}
	} // while
	return( plaintext );
}