var divPrefix = "Content";
var divLinkPrefix = "LinkContent";
var activeContentPane = 1;
var activeTimer = null;

//changes the HopepageContent on the Default.aspx page
//changes the image, text, and which number is active
function changeContent(ID, sender)
{  
    //if more content is added or removed the # that i is less than will have to be changed    
    for(var i=1;i<7;i++)
    {
        var id = ID;
        activeContentPane = ID;
        if(sender != null)
        {
            clearInterval(activeTimer);
        }        
        if(id==i)
        {
            //sets the image
            var image="";            
            image += "<img src=images/HomePageImages/"+i+".gif />";
            document.getElementById("HomepageImage").innerHTML=image;
            //shows the corresponding text
            document.getElementById("Text"+i).style.display = "block";
            //sets the selected number to active
            document.getElementById(i).className = "mainActive";           
        }
        else
        {
            //hides all other text
            document.getElementById("Text"+i).style.display = "none";
            //sets the rest of the numbers to innactive
            document.getElementById(i).className = "innactive";                   
        }     
    }
}
//
function homePageContentTimer()
{
    if((activeContentPane + 1) > 6)
    { 
        activeContentPane = 1;        
    }
    else
    {
        activeContentPane += 1;
    }
    changeContent(activeContentPane, null)
}


function showContent(sender, div, pic, page)
{    
    hideDivs();
    resetNav();
    if (pic == "ChangePicture")
    {
    changePicture(div, pic, page);       
    }
    div =  document.getElementById(divPrefix+div);    
    if (existsDefined(div))
    {        
        div.className = div.className.replace("Hidden", "");
        if (existsDefined(sender))
        {      
            if (sender.className.indexOf("active") == -1)
            {                
                sender.className += " active"; 
            }
        }
    }
}
function hideDivs()
{
    var divs = document.getElementsByTagName("div");
    for (var i=0; i < divs.length; i++)
    {
        if (divs[i].id.indexOf(divPrefix) != -1)
        {
            if (divs[i].className.indexOf("Hidden") == -1)
            {
                divs[i].className += " Hidden";
            }
        }
    }
}
function resetNav()
{
    var divs = document.getElementsByTagName("a");
    for (var i=0; i < divs.length; i++)
    {
        if (divs[i].id.indexOf(divLinkPrefix) != -1)
        {
            divs[i].className = divs[i].className.replace("active", "");
        }
    }
}
function changePicture(div, picture, page)
{
    if (picture == "ChangePicture")       
    var image="";       
    image += "<img src=images/PageImages/"+div+".jpg class='FloatLeft' />";   
    document.getElementById(page).innerHTML=image; 
}