function URLEncode(text_to_encode)
{
	// 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 = text_to_encode;
	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 copy(urlToCopy){
	//var text2copy="Copy me into buffer";
	netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');

	var Cc = Components.classes;
	var Ci = Components.interfaces;
	var Cstr = Cc["@mozilla.org/supports-string;1"];
	var CTra = Cc["@mozilla.org/widget/transferable;1"];
	var CClp = Cc["@mozilla.org/widget/clipboard;1"];

	var str = Cstr.createInstance(Ci.nsISupportsString);
	if (!str) return false; str.data = urlToCopy;

	var trans = CTra.createInstance(Ci.nsITransferable);
	if (!trans) return false;

	trans.addDataFlavor("text/unicode");
	trans.setTransferData("text/unicode", str, urlToCopy.length * 2);

	var clipboard = CClp.getService(Ci.nsIClipboard);
	if (!clipboard) return false;

	clipboard.setData(trans, null, Ci.nsIClipboard.kGlobalClipboard);
	return true;
}