Mine

function EasyVGUI(class,name,xpos,ypos,length,height,parent,txt)
	if parent == nil then
		ClassPanel = vgui.Create( class )
	else
		ClassPanel = vgui.Create( class, parent )
	end
	ClassPanel:SetName( name )
	ClassPanel:SetZPos(290)
	ClassPanel:SetSize(length,height)
	ClassPanel:SetKeyBoardInputEnabled( true ) 
	ClassPanel:SetMouseInputEnabled( true ) 
	ClassPanel:SetPos( xpos, ypos )
	ClassPanel:SetVisible( true )
	if text != nil then
		ClassPanel.Text = text
	end
	ClassPanel:LoadControlsFromString( [["resource/ui/vgui_inv.res"
{
	"]]..name..[["
	{
		"sizable"		"0"
	}
]] )
	return ClassPanel
end

function Inventory_VGUI()
	local base = EasyVGUI("Frame_Border","base panel",500,500,400,200)
	EasyVGUI("Button_Border","test button",5,30,40,20,base,"Test.")
	
end
concommand.Add("ws_inv",Inventory_VGUI)