Its possible convert this Script of a tool to a ImageButton right?

this is a script of a tool that can grow the size of a player, i want convert it to a image button, i can do this right? just converting the function of (MouseButton) to (OnClick) right?

bin = script.Parent
character=game.Players.LocalPlayer.Character
siting= false
function onButton1Down(mouse)
resizeImplementation(character, 1.42)
wait(0.03)
end

function resizeModelInternal(model, resizeFactor)
    local modelCFrame = model:GetModelCFrame()
    local modelSize = model:GetModelSize()
    local baseParts = {}
    local basePartCFrames = {}
    local joints = {}
    local jointParents = {}
    local meshes = {}

    findObjectHelper(model, ".*", "BasePart", baseParts)
    findObjectHelper(model, ".*", "JointInstance", joints)

    -- meshes don't inherit from anything accessible?
    findObjectHelper(model, ".*", "FileMesh", meshes)                    -- base class for SpecialMesh and FileMesh
    findObjectHelper(model, ".*", "CylinderMesh", meshes)
    findObjectHelper(model, ".*", "BlockMesh", meshes)

    -- store the CFrames, so our other changes don't rearrange stuff
    for _, basePart in pairs(baseParts) do
        basePartCFrames[basePart] = basePart.CFrame
    end

    -- scale meshes
    for _,mesh in pairs(meshes) do
        -- This is a nasty hack because head meshes scale relative to the part's size
        -- thus scaling the mesh and the head gives u 2x the size
        if mesh.Parent.Name ~= "Head" then
            mesh.Scale = mesh.Scale * resizeFactor
        end
    end

    -- scale joints
    for _, joint in pairs(joints) do
        joint.C0 = joint.C0 + (joint.C0.p) * (resizeFactor - 1)
        joint.C1 = joint.C1 + (joint.C1.p) * (resizeFactor - 1)
        jointParents[joint] = joint.Parent
    end

    -- scale parts and reposition them within the model
    for _, basePart in pairs(baseParts) do
        if pcall(function() basePart.FormFactor = "Custom" end) then basePart.FormFactor = "Custom" end
        basePart.Size = basePart.Size * resizeFactor
        local oldCFrame = basePartCFrames[basePart]
        local oldPositionInModel = modelCFrame:pointToObjectSpace(oldCFrame.p)
        local distanceFromCorner = oldPositionInModel + modelSize/2
        distanceFromCorner = distanceFromCorner * resizeFactor

        local newPositionInSpace = modelCFrame:pointToWorldSpace(distanceFromCorner - modelSize/2)
        basePart.CFrame = oldCFrame - oldCFrame.p + newPositionInSpace
    end

    -- pop the joints back, because they prolly got borked
    for _, joint in pairs(joints) do
        joint.Parent = jointParents[joint]
    end

    return model
end

function resizeImplementation(modelList, resizeFactor)
    if type(modelList) ~= "table" then modelList = {modelList} end

    for _, model in pairs(modelList) do
        --if model.Name ~= "BackPack" then
            resizeModelInternal(model, resizeFactor)
        --end
    end
    return modelList
end

local foundObjectList = {}
local foundObjectIndex = 1
function findObjectHelper(model, objectName, className, listOfFoundObjects)
    if not model then return end
    local findStart, findEnd = string.find(model.Name, objectName)
    if findStart == 1 and findEnd == #(model.Name) then  -- must match entire name
        if not className or model.className == className or (pcall(model.IsA, model, className) and model:IsA(className)) then
            table.insert(listOfFoundObjects, model)
        end
    end
    if pcall(model.GetChildren, model) then
        local modelChildren = model:GetChildren()
        for i = 1, #modelChildren do
            -- make sure not to resize tools, things tend to get complicated if we do
            if not (pcall(modelChildren[i].IsA, modelChildren[i], 'Tool') and modelChildren[i]:IsA('Tool')) then
                findObjectHelper(modelChildren[i], objectName, className, listOfFoundObjects)
            end
        end
    end
end

function onSelected(mouse)
    if (siting == true) then return end
    mouse.Button1Down:connect(function () onButton1Down(mouse) end)
end

bin.Selected:connect(onSelected)