function URLEncode(strInput)
{
	// 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 = strInput;
	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 createQueryString(sceneName, tabFields)
{
	var result;
	result = "?sceneName="+URLEncode(sceneName)+"&tabFields="+URLEncode(tabFields);
	return result;
}

function createTabFields()
{
	var doc = "<tabFields></tabFields>";

	return doc;
}

function addKeyValue(doc, key, value)
{

	var tmp = doc;
	var indexPreTabFields = doc.indexOf(">");
	doc = tmp.substring(0, indexPreTabFields+1) + "<TabField><Key>" + key + "</Key><Value>" + value + "</Value></TabField>" + tmp.substring(indexPreTabFields+1, tmp.length);

	return doc;
}


function clearString(src)
{
	gabage = "xmlns=\"\"";
	str = src;
	while(str.indexOf(gabage) != -1)
	{
		str = str.replace(gabage,"");
	}
	str = "?" + urlencode(str);

	return str;
}