function roll_p(tab_no)
{
	document.getElementById("p_" + tab_no).src = "/images/tabs/p_" + tab_no + "_act.gif"; 
}

function rest_p(tab_no)
{
	document.getElementById("p_" + tab_no).src = "/images/tabs/p_" + tab_no + ".gif"; 
}

function preload() 
{
	if (document.images) 
	{
    	var imgsrc = preload.arguments;
    	arr = new Array(imgsrc.length);
	    for (var j = 0; j < imgsrc.length; j++) 
		{
			arr[j] = new Image;
      		arr[j].src = imgsrc[j];
    	}
  	}
}

function do_preload() 
{
    var args = "";
	for (var i = 1; i < 7; i++)
	{
		if (args)
		{
		    if (i < 10)
		    {
				args += ", '/images/tabs/p_0" + i + "_act.gif'";
		    }
		    else
		    {
				args += ", '/images/tabs/p_" + i + "_act.gif'";
		    }
		}
		else
		{
			args += "'/images/tabs/p_0" + i + "_act.gif'";
		}
	}
	preload(args);
}