DropDown to new window

Home:
Gui, Home:Add, Button, x255 y75 w43 h23 gNext, Next
Gui, Home:Add, DropDownList, x85 y45 w120 h90 vSkill, Crafting|Smithing|Cooking|Fletching|Runecraft|Construction|Herblore
Gui, Home:Add, Text, x65 y20 w210 h20, Please select the skill you are training
Gui, Home:Show, w307 h104, Prime Skill Helper - Home
return

Crafting:
{
    Gui, Crafting:Add, Button, x255 y75 w43 h23, Next
    Gui, Crafting:Add, DropDownList, x85 y45 w120 h21, DropDownList
    Gui, Crafting:Add, Text, x65 y20 w210 h20, Please select the item you are making
    Gui, Crafting:Show, w307 h104, Prime Skill Helper - Crafting
}
return


Next:
Gui,Home:Submit
{
    if (Skill = Crafting)
    {
        goto Crafting
    }
    if (Skill = Smithing)
    {
        msgbox,,Prime Skill,Smithing is still a WIP
    }
    if (Skill = Cooking)
    {
        msgbox,,Prime Skill,Cooking is still a WIP
    }
    if (Skill = Fletching)
    {
        msgbox,,Prime Skill,Fletching is still a WIP
    }
    if (Skill = Runecraft)
    {
        msgbox,,Prime Skill,Runecraft is still a WIP
    }
    if (Skill = Herblore)
    {
        msgbox,,Prime Skill,Herblore is still a WIP
    }
}
return