Unity Script Reference:

static function LoadAssetAtPath(assetPath: string, type: Type): Object;

static Object LoadAssetAtPath(string assetPath, Type type);

static def LoadAssetAtPath(assetPath as string, type as Type) as Object

Parameters

assetPath	Filesystem path of the asset to load.
type	Data type of the asset.

Description

Returns the first asset object of type type at given path assetPath.

Some asset files may contain multiple objects. (such as a Maya file which may contain multiple Meshes and GameObjects). All paths are relative to the project folder, for example: "AssetsMyTextureshello.png".

Note:
The assetPath parameter is not case sensitive.
ALL asset names & paths in Unity use forward slashes, even on Windows.

@MenuItem("AssetDatabase/LoadAssetExample")
static function ImportExample()
{
	var t: Texture2D = AssetDatabase.LoadAssetAtPath("AssetsTexturestexture.jpg", Texture2D) as Texture2D;
}

See Also: AssetDatabase.LoadMainAssetAtPath, AssetDatabase.LoadAllAssetsAtPath.