//From http://brainerror.net/scripts/javascript/blendtrans/

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 ShowhideDIV(object1, object2,object3) {
document.getElementById(object1).style.display = 'block';
document.getElementById(object2).style.display = 'none';
document.getElementById(object3).style.display = 'none';
}


//Active Tab Selection

function changeClasses (element1, element1class, element2, element2class,element3, element3class) {
	var element1 = document.getElementById(element1);
	var element2 = document.getElementById(element2);
	var element3 = document.getElementById(element3);
	
	element1.setAttribute("class", element1class); //For Most Browsers
	element2.setAttribute("class", element2class); 
	element3.setAttribute("class", element3class); 


	element1.setAttribute("className", element1class); //For IE; harmless to other browsers.
	element2.setAttribute("className", element2class); 
	element3.setAttribute("className", element3class); 



}