m2m_en_off=new Image;
m2m_en_off.src="/_assets/images/m2m-en-off.png";
m2m_en_on = new Image;
m2m_en_on.src = "/_assets/images/m2m-en-on.png";

m2m_si_off=new Image;
m2m_si_off.src="/_assets/images/m2m-si-off.png";
m2m_si_on = new Image;
m2m_si_on.src = "/_assets/images/m2m-si-on.png";