Load partial view depending on dropdown selection in MVC3

Im trying to create a from using asp.net mvc3.

I have a dropdownlist with some options. What i want is different partial views to be injected into the page, depending on the selection in the dropdown list.

But. i dont want this to rely on a submit action. It should function so that, the partial view is loaded as soon as you select from the select list.

I have this code:

@using (Ajax.BeginForm("Create_AddEntity", new AjaxOptions { 
    UpdateTargetId = "entity_attributes", 
    InsertionMode = InsertionMode.Replace
    }
))
{
        <div class="editor-label">
            @Html.Label("Type")
        </div>
        <div class="editor-field">
            @Html.DropDownList("EntityTypeList", (SelectList)ViewData["Types"])
        </div>

        <div id="entity_attributes"></div>
        <p>
            <input type="submit" value="Create" />
        </p>
}

But I can't figure out how to trigger this partial view load when the dropdown list selection changes.

This point is that the form is different for the different "entity types". so there will be loaded a different partial view, depending on the dropdown selection.

Anyone got any pointers?