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_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_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];}
}

if (document.images) {
  about_f2 = new Image(72 ,41); about_f2.src = "images/about_f2.gif";
  about_f1 = new Image(72 ,41); about_f1.src = "images/about.gif";
  news_f2 = new Image(51 ,41); news_f2.src = "images/news_f2.gif";
  news_f1 = new Image(51 ,41); news_f1.src = "images/news.gif";
  cases_f2 = new Image(79 ,41); cases_f2.src = "images/cases_f2.gif";
  cases_f1 = new Image(79 ,41); cases_f1.src = "images/cases.gif";
  donating_f2 = new Image(71 ,41); donating_f2.src = "images/donating_f2.gif";
  donating_f1 = new Image(71 ,41); donating_f1.src = "images/donating.gif";
  supporters_f2 = new Image(82 ,41); supporters_f2.src = "images/supporters_f2.gif";
  supporters_f1 = new Image(82 ,41); supporters_f1.src = "images/supporters.gif";
  shopping_f2 = new Image(93 ,41); shopping_f2.src = "images/shopping_f2.gif";
  shopping_f1 = new Image(93 ,41); shopping_f1.src = "images/shopping.gif";
  contact_f2 = new Image(63 ,41); contact_f2.src = "images/contact_f2.gif";
  contact_f1 = new Image(63 ,41); contact_f1.src = "images/contact.gif";
  home_f2 = new Image(46 ,41); home_f2.src = "images/home_f2.gif";
  home_f1 = new Image(46 ,41); home_f1.src = "images/home.gif";
  }
  
  
function randomnumber(){
var ranNum= Math.round((Math.random()*4)+1);

document.getElementById('main_image').innerHTML = "<img name='main_image' src='images/mainimage" + ranNum + ".jpg' width='148' height='173' border='0' alt='ghana plastic surgery'>";

}