var c = 1;

var milliseconds = 7500;
var maximages = 4;

function disp_img(w)
	{
	if (c > maximages )
		{	
		c = 1;
		}
	
	if (c == 1)
		{
         document.getElementById("HomeFrame1").style.visibility="hidden";
         document.getElementById("HomeFrame4").style.visibility="visible";
		}

	if (c == 2)
		{
         document.getElementById("HomeFrame4").style.visibility="hidden";
         document.getElementById("HomeFrame2").style.visibility="visible";
		}

	if (c == 3)
		{
         document.getElementById("HomeFrame2").style.visibility="hidden";
         document.getElementById("HomeFrame3").style.visibility="visible";
		}
		
	if (c == 4)
		{
         document.getElementById("HomeFrame3").style.visibility="hidden";
         document.getElementById("HomeFrame1").style.visibility="visible";
		}
	
	
	c++;
	}

t = setInterval("disp_img(c)", milliseconds);