/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Function:		rebuildLayer()
Description:	rebuilds layer
Arguments:		none
Return:
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
function rebuildLayer(layerNames){
	var myMap = getMap();
	layers = layerNames.split(",");
	for (i=0; i<layers.length; i++){
		var myLayer = myMap.getMapLayer(layers[i]);
		myLayer.setRebuild(true);
	}
	myMap.refresh();
}