// Image Rollovers
function growImageSwap(obj,imagePath){
    try{
        obj.src=imagePath;    
    }catch(e){
        try{
            document.getElementById(obj).src = imagePath;
        }catch(e){
            return;    
        }
    }
    tryForPNG();
}
function tryForPNG(){
    try{
        correctPNG();
    }catch(err){
        //do nothing    
    }
}

function tryAlphaBackgrounds(){
    try{
        alphaBackgrounds();
    }catch(e){
        return;    
    }
}


// Image Rollovers: Buttons
function autoRoll(obj){
    try{
        var currName = obj.src;
        //get indox of last '.';
        var dotPos = currName.lastIndexOf('.');
        var baseName = currName.substr(0,dotPos);
        var ext = currName.substr(dotPos+1);
        if (ext == 'GIF'){
            //already on    
        }else{
            obj.src = baseName + '_On.GIF';
        }
    }catch(e){
        //someone messed up. Is obj an image?    
    }
}
function autoRollOut(obj){
    try{
        var currName = obj.src;
        //get indox of last '.';
        var dotPos = currName.lastIndexOf('.');
        var baseName = currName.substr(0,dotPos);
        var ext = currName.substr(dotPos+1);
        if (ext == 'gif'){
            //already off    
        }else{
            obj.src = baseName.substr(0,baseName.length-3) + '.gif';
        }
    }catch(e){
        //someone messed up. Is obj an image?    
    }
}

// Image Rollovers: Main Menu
function MM_swapImgRestore() { //v3.0
      var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
    }

    function MM_preloadImages() { //v3.0
        var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
        var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
        if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
    }

    function MM_findObj(n, d) { //v4.01
        var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
        d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
        if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
        for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
        if(!x && d.getElementById) x=d.getElementById(n); return x;
    }

function MM_swapImage() { //v3.0
        var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
        if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}