function showhide(objin) {
    obj='nav'+objin;
    objarrow = 'arrow'+objin;
    if (document.all) {
	    if(eval(obj).style.display=='block') {
		    eval(obj).style.display='none';
		    imgOn = eval("arrowoff.src");
    	    document [objarrow].src = imgOn;
		    }
	    else {
		    eval(obj).style.display='block';
		    imgOn = eval("arrowon.src");
    	    document [objarrow].src = imgOn;
		    }
		
	    }
    else if (document.getElementById) {
	    if(document.getElementById(obj).style.display=="block") {
		    document.getElementById(obj).style.display="none";
		    imgOn = eval("arrowoff.src");
    	    document [objarrow].src = imgOn;
		    }
	    else {
		    document.getElementById(obj).style.display="block";
		    imgOn = eval("arrowon.src");
    	    document [objarrow].src = imgOn;
		    }
	    }
    }
    
function show(objin) {

    obj='nav'+objin;
    objarrow = 'arrow'+objin;
    
    if (document.all) {
        eval(obj).style.display='block';
        imgOn = eval("arrowon.src");
	    document [objarrow].src = imgOn;
        }
    else if (document.getElementById) {
        document.getElementById(obj).style.display="block";
        imgOn = eval("arrowon.src");
	    document [objarrow].src = imgOn;
        }
    }
	
function hide(obj) {

    obj='nav'+obj;

    if (document.all) {
        eval(obj).style.display='none';
		
        }
    else if (document.getElementById) {
        document.getElementById(obj).style.display="none";
        }
    }
    
function hideall() {

    for(p=1;p<=500;p++) {
        obj='nav'+p;
        objarrow = 'arrow'+p;
    
        if (document.all) {
            if (typeof window[obj] !== 'undefined') {
                eval(obj).style.display='none';
                imgOn = eval("arrowoff.src");
	            document [objarrow].src = imgOn;
                }
            }
        else if (document.getElementById) {
            if (typeof document.getElementById(window[obj]) !== 'undefined') {
                document.getElementById(obj).style.display="none";
                imgOn = eval("arrowoff.src");
	            document [objarrow].src = imgOn;
                }
            }
            
        
	        
        }
    }        

function switchthemecolors(colorin) {
    if (document.all) {
            window["top-theme-back"].style.backgroundImage='url(images/pngbg_'+colorin+'.png)';
            window["top-theme-cover"].style.backgroundImage='url(images/pngnavcover_'+colorin+'.png)';
        }
    else if (document.getElementById) {
            document.getElementById("top-theme-back").style.backgroundImage='url(images/pngbg_'+colorin+'.png)';
            document.getElementById("top-theme-cover").style.backgroundImage='url(images/pngnavcover_'+colorin+'.png)';
        }
}

function switchthemeimages(imagein) {
    if (document.all) {
            window["top-theme-image"].style.backgroundImage='url(images/pngtheme_'+imagein+'.png)';
        }
    else if (document.getElementById) {
            document.getElementById("top-theme-image").style.backgroundImage='url(images/pngtheme_'+imagein+'.png)';
        }
}

if (document.images)
    {
        arrowon = new Image(0, 0);
        arrowon.src = "images/navArrowDown.gif";
        arrowoff = new Image(0, 0);
        arrowoff.src = "images/navArrow.gif";

    }