Hi Team,

I am trying to create a Custom List Button where I would like to update a Custom Object (Asset__c) from the Related List of another Custom Object (Inventory_Request__c) that are joined by a Junction Object (Asset_Request_Junction__c).  In a nutshell, I am on the Inventory Request Screen, I select my Asset Request Junction records, and want to update the Assets associated to theose Junction records.  The error I am getting is saying that the Ids are not defined...can anyone help me with this one?

{!REQUIRESCRIPT("/soap/ajax/16.0/connection.js")} 

var assetItems = {!GETRECORDIDS($ObjectType.Asset_Request_Junction__c)};

var SelectedIds=''; 
for(var i=0;i < assetItems.length; i++) {
	SelectedIds+="'"+assetItems[i]+"',";
}

SelectedIds=SelectedIds.substring(0,SelectedIds.length - 1);

var updatedAssets = [];

if(assetItems.length<1) {
	alert("Please choose at least one Asset to update.");
} else {
	var r = confirm("Click ''OK'' to update Assets."); 
	if (r == true) { 
		try {
			var aiQuery = "select Asset__r.Id from Asset_Request_Junction__c where Id in ("+SelectedIds+")";
			var result = sforce.connection.query(aiQuery);
			var records = result.getArray("records");
               			for (var n=0; n<records.length; n++) {
					if (records[n].get("Asset_Status__c") != "Good Firefox") {
                        			var a = new sforce.SObject("Asset__c");                                              
                        			a.id = records[n].id;
						a.Asset_Status__c = "Good Firefox";                      
					updatedAssets.push(a);
					}
                  		}    
			result = sforce.connection.update(updatedAssets);
			window.location.reload(); 
			if (result[0].getBoolean("success")) {
				alert("Assets Updated");
			} else {
				alert("Failed to update Assets" + result[0]);
				}
		}
catch (e) {
alert(e);
}
}
}