function SwapImage(ImageName,ImageFile){
         Image1=new Image(119,39);
         Image1.src = ImageFile;
         document[ImageName].src = Image1.src;
         return true;
}

var pageWidth = 858;
var rightSideWidth = 250;
var x = 0;
var y = 175;
var screenWidth = 0;

function on(id) {
  if(window.innerWidth) {
  	screenWidth = window.innerWidth;
  }
  else if(document.body.clientWidth){
  	screenWidth = document.body.clientWidth;
  }
  else {
    screenWidth = 1000;
  }

  x =  Math.floor(((screenWidth - pageWidth)/2) + rightSideWidth);

  if (document.getElementById) {
    document.getElementById("refImages").style.visibility = "visible";
    document.getElementById("refImages").style.top = y + "px";
  	document.getElementById("refImages").style.right = x + "px";

    document.getElementById("ref" + id).style.visibility = "visible";
  }
  else if (document.all) {
    document.all.refImages.style.visibility = "visible";
    document.all.refImages.style.top = y + "px";
    document.all.refImages.style.left = x + "px";
    switchRefId(id, "visible")
  }
}
function off(id) {
  if (document.getElementById) {
    document.getElementById("refImages").style.visibility = "hidden";
    document.getElementById("ref" + id).style.visibility = "hidden";
  }
  else if (document.all) {
    document.all.refImages.style.visibility = "hidden";
    switchRefId(id, "hidden")
  }
}

function switchRefId(id, option) {
	switch(id) {
		case 1:
			document.all.ref1.style.visibility = option;
		break;
		case 2:
			document.all.ref2.style.visibility = option;
		break;
		case 3:
			document.all.ref3.style.visibility = option;
		break;
		case 4:
			document.all.ref4.style.visibility = option;
		break;
		case 5:
			document.all.ref5.style.visibility = option;
		break;
		case 6:
			document.all.ref6.style.visibility = option;
		break;
		case 7:
			document.all.ref7.style.visibility = option;
		break;
		case 8:
			document.all.ref8.style.visibility = option;
		break;
		case 9:
			document.all.ref9.style.visibility = option;
		break;
		case 10:
			document.all.ref10.style.visibility = option;
		break;
        case 11:
			document.all.ref11.style.visibility = option;
		break;
		case 12:
			document.all.ref12.style.visibility = option;
		break;
		case 13:
			document.all.ref13.style.visibility = option;
		break;
		case 14:
			document.all.ref14.style.visibility = option;
		break;
		case 15:
			document.all.ref15.style.visibility = option;
		break;
		case 16:
			document.all.ref16.style.visibility = option;
		break;
		case 17:
			document.all.ref17.style.visibility = option;
		break;
		case 18:
			document.all.ref18.style.visibility = option;
		break;
		case 19:
			document.all.ref19.style.visibility = option;
		break;
		case 20:
			document.all.ref20.style.visibility = option;
		break;
        case 21:
			document.all.ref21.style.visibility = option;
		break;
		case 22:
			document.all.ref22.style.visibility = option;
		break;
		case 23:
			document.all.ref23.style.visibility = option;
		break;
		case 24:
			document.all.ref24.style.visibility = option;
		break;
		case 25:
			document.all.ref25.style.visibility = option;
		break;
	}
}