function change_back()
{
	//change_logo();Updated by Aamir on 27-03-2008. Reason: Random logo not required
    no_backs = 12;
    var rand = Math.round( Math.random() * no_backs );
    rand_value=rand;
    if(rand_value==null || rand_value==0)
    {
        rand=1
    }
    exten=".jpg";

    image_name=(rand+exten);
	var abc =  document.getElementById('bgImage');
	if(abc!=null && abc!='')
	{
		var bgname = "images/bg/mp57_back"+image_name;
		document.getElementById("bgImage").style.backgroundImage = "url('"+bgname+"')";
	}
}

function change_logo()
{
    no_backs = 12;
    var rand = Math.round( Math.random() * no_backs );
    rand_value=rand;
    if(rand_value==null || rand_value==0)
    {
        rand=1
    }
    exten=".jpg";

    image_name=(rand+exten);
	var abc =  document.getElementById('imgLogo');
	if(abc!=null && abc!='')
	{
		var bgname = "images/logos/logo"+image_name;
		document.getElementById("imgLogo").src = bgname;
	}
}

function change_blogbg()
{
    no_backs = 4;
    var rand = Math.round( Math.random() * no_backs );
    rand_value=rand;
    if(rand_value==null || rand_value==0)
    {
        rand=1
    }
    exten=".gif";

    image_name=(rand+exten);
	var bgname = "images/blogbg/bg"+image_name;
	document.body.background = bgname;
}

var myimages=new Array()

function preloadimages()
{
    for (i=0;i<preloadimages.arguments.length;i++)
    {
        myimages[i]=new Image()
        myimages[i].src=preloadimages.arguments[i]
    }
}
preloadimages("images/bg/mp57_back1.jpg","images/bg/mp57_back2.jpg","images/bg/mp57_back3.jpg","images/bg/mp57_back4.jpg","images/bg/mp57_back5.jpg","images/bg/mp57_back6.jpg","images/bg/mp57_back7.jpg","images/bg/mp57_back8.jpg","images/bg/mp57_back9.jpg","images/bg/mp57_back10.jpg","images/bg/mp57_back11.jpg","images/bg/mp57_back12.jpg","images/logos/logo1.jpg","images/logos/logo2.jpg","images/logos/logo3.jpg","images/logos/logo4.jpg","images/logos/logo5.jpg","images/logos/logo6.jpg","images/logos/logo7.jpg","images/logos/logo8.jpg","images/logos/logo9.jpg","images/logos/logo10.jpg","images/logos/logo11.jpg","images/logos/logo12.jpg");
//window.onload = change_back;