we don't have a select all function.. but this should do the trick:

function selectAll(){
	var layers = document.layers;
	for (var i=0; i<layers.length; i++){
		var layer = document.layers[i];
		var children = layer.children;
		for(var j=0; j<children.length; j++){
			children[j].selected=true;
		}
	}
}

selectAll();

ya thanks, i did it by myself too this way:P

countOfLayers = activeDocument.layers.length;
var doc;
if (countOfLayers > 1) {
doc = activeDocument.layers[countOfLayers-1];
}
for ( i = 0; i < doc.pageItems.length; i++ ) {
doc.pageItems[i].selected = true;
}

See u next time maybe ;)

ehm how does it work to change the line style from full line to stroked?
the javascript reference doesnt helps a lot...

You seem to be using Illustrator's own scripting engine, not the Scriptographer plugin. We cannot help you here with this, since the syntax differs a lot.

i use scriptographer too since yesterday, just tested what it can do.
And ya i wanna use the javascript engine.
So i thought i might get help here.

i want to create some tools to solve daily jobs:)