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) { 
	if(document.getElementById(id) != null)
	{
		
		var object = document.getElementById(id).style; 
		object.opacity = (opacity / 100); 
		object.MozOpacity = (opacity / 100); 
		object.KhtmlOpacity = (opacity / 100); 
		object.filter = "alpha(opacity=" + opacity + ")";
		
	}
	
}

// Function to blink item
function blink(this_id)
{
	
	changeOpac(0, this_id);
	opacity(this_id, 0, 100, 400);
	
}