/*--- waitForKeyElements():  A utility function, for Greasemonkey scripts,that detects and handles AJAXed content.Usage example:waitForKeyElements ("div.comments", commentCallbackFunction);//--- Page-specific function to do what we want when the node is found.function commentCallbackFunction (jNode) {jNode.text ("This comment changed by waitForKeyElements().");}IMPORTANT: This function requires your script to have loaded jQuery.*/function waitForKeyElements (selectorTxt,    /* Required: The jQuery selector string thatspecifies the desired element(s).*/actionFunction, /* Required: The code to run when elements arefound. It is passed a jNode to the matchedelement.*/bWaitOnce,      /* Optional: If false, will continue to scan fornew elements even after the first match isfound.*/iframeSelector  /* Optional: If set, identifies the iframe tosearch.*/) {var targetNodes, btargetsFound;if (typeof iframeSelector == "undefined")targetNodes     = $(selectorTxt);elsetargetNodes     = $(iframeSelector).contents ().find (selectorTxt);if (targetNodes  &&  targetNodes.length > 0) {btargetsFound   = true;/*--- Found target node(s).  Go through each and act if theyare new.*/targetNodes.each ( function () {var jThis        = $(this);var alreadyFound = jThis.data ('alreadyFound')  ||  false;if (!alreadyFound) {//--- Call the payload function.var cancelFound     = actionFunction (jThis);if (cancelFound)btargetsFound   = false;elsejThis.data ('alreadyFound', true);}} );}else {btargetsFound   = false;}//--- Get the timer-control variable for this selector.var controlObj      = waitForKeyElements.controlObj  ||  {};var controlKey      = selectorTxt.replace (/[^\w]/g, "_");var timeControl     = controlObj [controlKey];//--- Now set or clear the timer as appropriate.if (btargetsFound  &&  bWaitOnce  &&  timeControl) {//--- The only condition where we need to clear the timer.clearInterval (timeControl);delete controlObj [controlKey]}else {//--- Set a timer, if needed.if ( ! timeControl) {timeControl = setInterval ( function () {waitForKeyElements (    selectorTxt,actionFunction,bWaitOnce,iframeSelector);},300);controlObj [controlKey] = timeControl;}}waitForKeyElements.controlObj   = controlObj;}1