var getObj = function(obj)
{
	//w3c
	if(document.getElementById)
	{
		return document.getElementById(obj);
	}

	//ie4+
	else if(document.all)
	{
		return document.all[obj];
	}

	//ns4+ without using nested layers
	else if(document.layers)
	{
		return document.layers[obj];
	}

	else
	{
		return null;
	}
}

function getObjInFrameName(obj, framename)
{
	var theFrame = top.frames[framename].document;
	
	if (typeof(theFrame) == "undefined")
		return null;
	
	//w3c
	if(theFrame.getElementById)
	{
		return theFrame.getElementById(obj);
	}
	//ie4+
	else if(theFrame.all)
	{
		return theFrame.all[obj];
	}
	//ns4+ without using nested layers
	else if(theFrame.layers)
	{
		return theFrame.layers[obj];
	}
	else
	{
		return null;
	}
}
	
function playVid(){
    document.getElementById("WMP").FileName = "<%= PlayerUrl() %>";
    document.getElementById("WMP").Play();
}

function OnScript(sType,sParam,eventid) 
{
	if(sType=="POLL"||sType=="poll")
    {
	    var slideIMG = getObj("slidesframe");
	    if(slideIMG)
	        slideIMG.src =  "feedback.aspx?EventID="+eventid;
	} 
	else if(sType=="MOD")
	{
	    var slideIMG = null;	
		
		var scArr = sParam.split(",");
		// add prevailing zeros if the string is less than 3 chars long
		if(scArr[1].length==1){scArr[1]="00"+scArr[1]}
		if(scArr[1].length==2){scArr[1]="0"+scArr[1]}
		
	    slideIMG = getObj('slides');	
	    //change the slide to the correct slide in the correct folder		    
		if(slideIMG)
		{
		    slideIMG.src = "slides/testslides/slide" + scArr[1] + ".jpg";
		    slideIMG.alt = "Slide " + scArr[1];
        }
        else
        {
              slideIMG = getObjInFrameName('slides','slidesframe');	
             if(slideIMG)
             {
                 slideIMG.src = "slides/" + eventid + "/slide" + scArr[1] + ".jpg";
		        slideIMG.alt = "Slide " + scArr[1];
             }	
        }
	}
}