function GetXmlHttpObject(handler)
    {
        var objXmlHttp=null

        if (navigator.userAgent.indexOf("Opera")>=0)
        {
            alert("This example doesn't work in Opera")
            return
        }
        if (navigator.userAgent.indexOf("MSIE")>=0)
        {
            var strName="Msxml2.XMLHTTP"
            if (navigator.appVersion.indexOf("MSIE 5.5")>=0)
            {
                strName="Microsoft.XMLHTTP"
            }
            try
            {
                objXmlHttp=new ActiveXObject(strName)
                objXmlHttp.onreadystatechange=handler
                return objXmlHttp
            }
            catch(e)
            {
                alert("Error. Scripting for ActiveX might be disabled")
                return
            }
        }
            if (navigator.userAgent.indexOf("Mozilla")>=0)
            {
                objXmlHttp=new XMLHttpRequest()
                objXmlHttp.onload=handler
                objXmlHttp.onerror=handler
                return objXmlHttp
            }
    }
    
    
    
function fnShow_exercises(val,class_id)
{
            id = 'exercise_name'+class_id;
            count = document.getElementById('count_exer').value
            document.getElementById(id).className = ""; 
            for(var i=1; i<=count; i++)
           {
              
                document.getElementById('exercise_name'+i).className = '';
                //$(i).className = '';
           } 
           document.getElementById(id).className = 'currentExer';            
           document.getElementById('exerbox').innerHTML = "<img src='images/loading2.gif'>";           
           xmlHttp=GetXmlHttpObject(loadIamge)
           url = "getImage.php?id="+val;
           xmlHttp.open("GET", url , true)
           xmlHttp.send(null)  
}



 function loadIamge()
          {
            
               if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
               {
                     
                      var result=xmlHttp.responseText;
                      document.getElementById('exerbox').innerHTML = result;
               }
          
          }
          
          
          function fnShow_exercises_images(val)    
          {
             id = 'link'+val;
             count = document.getElementById("no_image").value 
             document.getElementById(id).className = "";   
              for(var i=1; i<=count; i++)
               {
                    document.getElementById('link'+i).className = '';
               } 
             document.getElementById(id).className = 'currentImage'; 
             img_val = document.getElementById("image_name").value 
             image = img_val+"_"+val+".jpg";
             next_value = val+1; 
             document.getElementById("image1").src = "http://www.altusathletic.com/exerciseImages/"+image;
             //Effect.SlideDown('exerBoxMid',{duration:5.0}); 
             //return false;
             document.getElementById("next_link").href = "javascript:fnShow_exercises_images("+next_value+")";
             if(val == count)
             {
                //document.getElementById("next_link").style.display = 'none';
                document.getElementById("next_link").href = "javascript:fnShow_exercises_images(1)"; 
             }
             /*else
             {
               document.getElementById("next_link").style.display = 'block';  
             }*/
          }
          
          
/*function callAjax_Rotation(url,refreshId)
            {
                new Ajax.Request(url,
                {
                        method: 'get',
                        onComplete:function(req)
                        {
                            var res = req.responseText
                            if(res.length > 0)
                            {
                                alert(res)
                                showInHome(1);
                            }
                            //$(refreshId).innerHTML=res;
                            //alert(res);
                        }
                }); 
                //alert(url)
            
            } */