function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


function change_img_menulight()
{
document.images.light.src = "images/menu/light_bottom_on.jpg";
document.images.thumb_light.src = "images/menu/thumb_light_on.jpg";
}

function change_back_menulight()
{
document.images.light.src = "images/menu/light_bottom_off.jpg";
document.images.thumb_light.src = "images/menu/thumb_light.jpg";
}

function change_img_menuair()
{
document.images.air.src = "images/menu/air_bottom_on.jpg";
document.images.thumb_air.src = "images/menu/thumb_air_on.jpg";
}

function change_back_menuair()
{
document.images.air.src = "images/menu/air_bottom_off.jpg";
document.images.thumb_air.src = "images/menu/thumb_air.jpg";
}

function change_img_menumatter()
{
document.images.matter.src = "images/menu/matter_bottom_on.jpg";
document.images.thumb_matter.src = "images/menu/thumb_matter_on.jpg";
}

function change_back_menumatter()
{
document.images.matter.src = "images/menu/matter_bottom_off.jpg";
document.images.thumb_matter.src = "images/menu/thumb_matter.jpg";
}

function change_img_menunews()
{
document.images.news.src = "images/menu/news_bottom_on.jpg";
}

function change_back_menunews()
{
document.images.news.src = "images/menu/news_bottom_off.jpg";
}

function change_img_thumb_light()
{
document.images.light.src = "images/menu/light_bottom_on.jpg";
document.images.thumb_light.src = "images/menu/thumb_light_on.jpg";
}

function change_back_thumb_light()
{
document.images.light.src = "images/menu/light_bottom_off.jpg";
document.images.thumb_light.src = "images/menu/thumb_light.jpg";
}

function change_img_thumb_air()
{
document.images.air.src = "images/menu/air_bottom_on.jpg";
document.images.thumb_air.src = "images/menu/thumb_air_on.jpg";
}

function change_back_thumb_air()
{
document.images.air.src = "images/menu/air_bottom_off.jpg";
document.images.thumb_air.src = "images/menu/thumb_air.jpg";
}

function change_img_thumb_matter()
{
document.images.matter.src = "images/menu/matter_bottom_on.jpg";
document.images.thumb_matter.src = "images/menu/thumb_matter_on.jpg";
}

function change_back_thumb_matter()
{
document.images.matter.src = "images/menu/matter_bottom_off.jpg";
document.images.thumb_matter.src = "images/menu/thumb_matter.jpg";
}


//function replaceme(light,img) { 
//light.src = images/menu/light_on.jpg; 
//} 
//function restoreme(light,img) { 
//light.src = images/menu/light_off.jpg; 
//}

//function replaceme(which,img) { 
//which.src = img; 
//} 
//function restoreme(which,img) { 
//which.src = img; 
//}


//function swapimages(which1,what1,which2,what2){
//document.getElementById(''+which1+'').src=''+what1+'';
//document.getElementById(''+which2+'').src=''+what2+'';
//}
//
//function restoreimages(which1,what1,which2,what2){
//document.getElementById(''+which1+'').src=''+what1+'';
//document.getElementById(''+which2+'').src=''+what2+'';
//}