// JavaScript Document
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++;
		}//end for
	}else if(opacStart < opacEnd){
		for(i = opacStart; i <= opacEnd; i++){
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}//end for
	}//end if
}//end function

//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 + ")";
}//end function