global weights = [];
for (var cell = 0; cell <= 612; cell++)
    weights[cell] = 0;
global open_list = [];
global closed_list = [];
function dijkstra(cell1, cell2)
{
    push(open_list, getCell());
    while (count(open_list) > 0)
    {
        var current = shift(open_list);
        push(closed_list, current);
        var cellsToAdd = getNearestCells(current);
        for (var cell in cellsToAdd)
        {
            if (!inArray(closed_list, cell))
            {
                push(open_list, cell);
            }
            if (cell == cell2)
            {
                //... :D
            }
        }
    }
}

function getNearestCells(cell)
{
    var x = getCellX(cell);
    var y = getCellY(cell);
    var cells = [getCellFromXY(x + 1, y + 1),
                 getCellFromXY(x + 1, y - 1),
                 getCellFromXY(x - 1, y + 1),
                 getCellFromXY(x - 1, y - 1)];
    while (inArray(cells, null))
        removeElement(cells, null);
    return cells;
}