function js_controller_destinationTiles(sender, evt)
{
    var objBtn=document.getElementById(sender);
    switch(sender.toLowerCase())
    {
        case "destal":
            if(evt.type=="mouseover")
            {
                swapImage(document.getElementById('destAlOn'), document.getElementById('destAl'));
            }
            if(evt.type=="mouseout")
            {
                swapImage(document.getElementById('destAl'), document.getElementById('destAlOn'));
            }            
        break;
        case "destco":
            if(evt.type=="mouseover")
            {
                swapImage(document.getElementById('destCoOn'), document.getElementById('destCo'));
            }
            if(evt.type=="mouseout")
            {
                swapImage(document.getElementById('destCo'), document.getElementById('destCoOn'));
            }            
        break;
        case "destke":
            if(evt.type=="mouseover")
            {
                swapImage(document.getElementById('destKeOn'), document.getElementById('destKe'));
            }
            if(evt.type=="mouseout")
            {
                swapImage(document.getElementById('destKe'), document.getElementById('destKeOn'));
            }            
        break;
        case "destcy":
            if(evt.type=="mouseover")
            {
                swapImage(document.getElementById('destCyOn'), document.getElementById('destCy'));
            }
            if(evt.type=="mouseout")
            {
                swapImage(document.getElementById('destCy'), document.getElementById('destCyOn'));
            }            
        break; 
        case "destsp":
            if(evt.type=="mouseover")
            {
                swapImage(document.getElementById('destSpOn'), document.getElementById('destSp'));
            }
            if(evt.type=="mouseout")
            {
                swapImage(document.getElementById('destSp'), document.getElementById('destSpOn'));
            }            
        break;
        case "destbl":
            if(evt.type=="mouseover")
            {
                swapImage(document.getElementById('destBlOn'), document.getElementById('destBl'));
            }
            if(evt.type=="mouseout")
            {
                swapImage(document.getElementById('destBl'), document.getElementById('destBlOn'));
            }            
        break;
        case "destme":
            if(evt.type=="mouseover")
            {
                swapImage(document.getElementById('destMeOn'), document.getElementById('destMe'));
            }
            if(evt.type=="mouseout")
            {
                swapImage(document.getElementById('destMe'), document.getElementById('destMeOn'));
            }            
        break;
        case "destma":
            if(evt.type=="mouseover")
            {
                swapImage(document.getElementById('destMaOn'), document.getElementById('destMa'));
            }
            if(evt.type=="mouseout")
            {
                swapImage(document.getElementById('destMa'), document.getElementById('destMaOn'));
            }            
        break;
        case "destla":
            if(evt.type=="mouseover")
            {
                swapImage(document.getElementById('destLaOn'), document.getElementById('destLa'));
            }
            if(evt.type=="mouseout")
            {
                swapImage(document.getElementById('destLa'), document.getElementById('destLaOn'));
            }            
        break;                            
    }
}