// Author: Patric Svärd 
// E-mail: patricsvard@gmail.com
// 
// Code made for random images

var root = "bildarkiv/";
var current = 0;
var lastAdded = null;
var number = null;
var ms = 5000;

Run();

function Instance() {
    
    if(current == 0)
    {
        var nr = GetRandom(imgUrls.length - 1);
        
        document.getElementById('cImg1').src = root + imgUrls[nr].substr(0,imgUrls[nr].lastIndexOf('@'));
        document.getElementById('cHref1').href = "student.aspx?studentID="+ imgUrls[nr].substr(imgUrls[nr].lastIndexOf('@')+1,imgUrls[nr].length);
        current = 1; 
    }
    else
    {
        var nr = GetRandom(imgUrls.length - 1);
        /*document.getElementById('cImg2').src = root + imgUrls[nr];
        current = 0;*/
        var imgURL = imgUrls[nr].substr(0,imgUrls[nr].lastIndexOf('@'));
        //document.write(imgURL);
        document.getElementById('cImg2').src = root + imgURL
        document.getElementById('cHref2').href = "student.aspx?studentID="+ imgUrls[nr].substr(imgUrls[nr].lastIndexOf('@')+1,imgUrls[nr].length);
        current = 0; 
    } 
        
    Run();
}

function GetRandom(max) {
    number = lastAdded;
    
    while(number === lastAdded)
    {
        number = Math.floor(Math.random() * max);
    }
    
    return number;
}

function Run() {   
    window.setTimeout('Instance()',ms);  
}