$(document).ready(function() {
	var length = $(".footer ul li").length;
	var display = 6;
	var list = [];
	
	if(length > display)
	{
		while(list.length < display)
		{
			var ran = Math.floor(Math.random()*length) + 1;
			list.push(ran);
			list = eliminateDuplicates(list);
		}
		
		for(var i in list)
		{
			console.log(i);
			$(".footer ul li:nth-child("+list[i]+")").removeClass();	
			
		}
	}
	
	
	
	function eliminateDuplicates(arr) {
  	var i,
	  len=arr.length,
	  out=[],
	  obj={};

	  for (i=0;i<len;i++) {
	    obj[arr[i]]=0;
	  }
	  for (i in obj) {
	    out.push(i);
	  }
	  return out;
	}
	
})