var myArr = new Array("1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17","18","19","20","21","22","23","24","25","26","27","28","29","30","31","32","33","33","34","35","36","37","38","39","40");
var outArr=pickNums(5, myArr);

function pickNums(nums, numArr)
{
  if(nums>numArr.length)
  {
    alert('You are trying to pick more elements from the array than it has!');
    return false;
  }
  var pickArr=new Array();
  var tempArr=numArr;
  for(var i=0; i<nums; i++)
  {
    pickArr[pickArr.length]=tempArr[Math.round((tempArr.length-1)*Math.random())];
    var temp=pickArr[pickArr.length-1];
    for(var j=0; j<tempArr.length; j++)
    {
      if(tempArr[j]==temp)
      {
        tempArr[j]=null;
        var tempArr2=new Array();
        for(var k=0; k<tempArr.length; k++)
          if(tempArr[k]!=null)
            tempArr2[tempArr2.length]=tempArr[k];
        tempArr=tempArr2;
        break;
      }
    }
  }
  return pickArr;
}

function showImage(){
	for(var i=0; i<outArr.length; i++)
	{
		if (i == (outArr.length-1)){
	  document.write('<div class="bottomborderlast"><img src="/Portals/0/images/logos/bottom_logos'+outArr[i]+'.jpg" usemap="#Map'+outArr[i]+'" border="0" ></div>');
		}
		
		else{
	  document.write('<div class="bottomborder"><img src="/Portals/0/images/logos/bottom_logos'+outArr[i]+'.jpg" usemap="#Map'+outArr[i]+'" border="0"></div>');
			}
		
	}
}