gistfile1.js

MySymbol.prototype.isIn = function(parentItem, runThis) {
    //var parent = doc.pathItems[0];
    var isTrue;
    var parentVB = parentItem.visibleBounds;
    var parentLeft = parentVB[0];
    var parentTop = -parentVB[1]; //make negative number a positive illustrator measures everything down as negative
    var parentRight = parentVB[2];
    var parentBottom = -parentVB[3]; //make negative number a positive illustrator measures everything down as negative

    print("parent is : " + parent.name);
    print("child is : " + this.name);

    if (isTrue){
        runThis();
    } 
    var child = this.visibleBounds;
    
    pointIsIn(parentLeft, parentTop, parentBottom, parentRight, child);
    function pointIsIn(parentLeft, parentTop, parentBottom, parentRight, child) {        
        print("parent bounds: "+left+" "+top+" "+right+" "+bottom);
        print("cold bounds: "+ child[0] + child[1] + child[2] + child[3]);     
            
        if ( child[0] > parentLeft && childTop > parentTop && childRight < parentRight && childBottom > parentBottom) {
            print("pass");
            var isTrue = true;
            return true;
        } else {
            print("fail");
            var isTrue = false;
            return false;
       }
    }
}

js2.js

function runMe() {
       print("success!");
}

var pageItems = doc.layers.getByName("parent").pageItems;
//for each "div" inside of the parent
for ( var i = 0; i < pageItems.length; i++ ) {
    function alertName() { alert(itemName);}
	var currentContainer = pageItems[i];
	//var itemName = currentContainer.name;
    // loop through all the symbols to check if it is in the div
    for(var i = 0; i < doc.symbolItems.length; i++){
        var currentSymbol = new MySymbol(i);
        print(currentSymbol.mySymbolIndex);
        print(" == end symbol == ");
        currentSymbol.isIn(currentContainer, runMe);
    }
}
print("\n ====== end containers ======== ");