var Started = false;
function opacity(id, opacStart, opacEnd, millisec) { 
    //speed for each frame 
    var speed = Math.round(millisec / 100); 
    var timer = 0; 

    //determine the direction for the blending, if start and end are the same nothing happens 
    if(opacStart > opacEnd) { 
        for(i = opacStart; i >= opacEnd; i--) { 
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed)); 
            timer++; 
        } 
    } else if(opacStart < opacEnd) { 
        for(i = opacStart; i <= opacEnd; i++) 
            { 
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed)); 
            timer++; 
        } 
    } 
} 

//change the opacity for different browsers 
function changeOpac(opacity, id) { 
    var object = document.getElementById(id).style; 
    object.opacity = (opacity / 100); 
    object.MozOpacity = (opacity / 100); 
    object.KhtmlOpacity = (opacity / 100); 
    object.filter = "alpha(opacity=" + opacity + ")"; 
} 

function ShowImages(total)
{
	if ($$('img'+(total-1)))
	{
		var j = 0;
		for(j=0;j<total;j++)
		{
			opacity('img'+j, 0, 100, 500);
		}
	}
	else
	{
		setTimeout('ShowImages('+total+');', 1000);
	}
}

function hideImage(id)
{
	opacity(id, 100, 0, 200);
}

function showImage(id)
{
	opacity(id, 0, 100, 500);
}