// JavaScript Document
var currentdiv_sel = "a1";
var currentlink_sel = "td1";
var currentlink_sel_inner = "slink1";
var millisec = 300;
function display_div(divid){
    //opacity(currentdiv_sel, 100, 0, millisec);
	Hide_MQ(currentdiv_sel);
    
	currentdiv_sel = divid;	
	Show_MQ(divid);
	//opacity(divid, 0, 100, millisec);	
}

function display_div_inner(divid, linkid){
    //opacity(currentdiv_sel, 100, 0, millisec);
	//Hide_MQ(currentdiv_sel);
	document.getElementById(currentlink_sel_inner).className = "normal";
	document.getElementById(linkid).className = "activate"; 
	currentlink_sel_inner = linkid;
	currentdiv_sel = divid;	
	//Show_MQ(divid);
	//opacity(divid, 0, 100, millisec);	
}

function hoverbox(activediv, activeclass){
    document.getElementById("td1").className = "boxnormal";
	document.getElementById("td2").className = "boxnormal";
	document.getElementById("td3").className = "boxnormal";
	document.getElementById("td4").className = "boxnormal";
	currentlink_sel = activediv;
    document.getElementById(activediv).className = activeclass;	
}

function hoverboxsingle(activediv, activeclass){
	document.getElementById(activediv).className = activeclass;	
	document.getElementById(currentlink_sel).className = "boxhover";
}

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++;
        }
    }
}

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 Show_MQ(Element){
  var oId=document.getElementById(Element)
  oId.style.visibility = "visible";
  oId.style.display = "";
}

function Hide_MQ(Element){
  var oId=document.getElementById(Element)
  oId.style.visibility = "hidden";
  oId.style.display = "none";
}