function changeMySrc(i) {    
    if (i == 1) {
        document.getElementById("Img1").src="Images/icon_corporate_info_over.gif";
    } else if (i == 2) {
        document.getElementById("Img2").src="Images/icon_fact_figure_over.gif";
    }else if (i == 3) {
        document.getElementById("Img3").src="Images/icon_ann_rep_over.gif";
    }else if (i == 4) {
        document.getElementById("Img4").src="Images/icon_online_over.gif";
    }else if (i == 5) {
        document.getElementById("Img5").src="Images/icon_visitus_over.gif";
    }else if (i == 6) {
        document.getElementById("Img6").src="Images/icon_watersaving_over.gif";
    }else if (i == 7) {
        document.getElementById("Img7").src="Images/icon_usefuldata_over.gif";
    }else if (i == 8) {
        document.getElementById("Img8").src="Images/icon_media_over.gif";
    }else if (i == 9) {
        document.getElementById("Img9").src="Images/icon_career_over.gif";
    }else if (i == 10) {
        document.getElementById("Img10").src="Images/icon_tenders_over.gif";
    }else if (i == 11) {
        document.getElementById("Img11").src="Images/icon_contactus_over.gif";
    }else if (i == 12) {
        document.getElementById("Img12").src="Images/icon_home.gif";
    }

}


function clickButton(e, buttonid){ 

      var evt = e ? e : window.event;

      var bt = document.getElementById(buttonid);

      if (bt){ 

          if (evt.keyCode == 13){ 

                bt.click(); 

                return false; 

          } 

      } 

}