function showhide(el) {
	document.getElementById(el).style.display = (document.getElementById(el).style.display == 'none')?'block':'none';
	document.getElementById("f").focus();
}

function closethis(el) {
	document.getElementById(el).style.display = 'none';
}

function openthis(el) {
	document.getElementById(el).style.display = 'block';
}


/*--------------------------------- gallery ----------------------------------*/

function gallery(nr) {
	document.getElementById("popup").style.display = 'block';
	document.getElementById("galleryimg").src = pic[nr - 1];
	
    for (var i = 1; i<=pic.length; i++) {
		document.getElementById("n"+i).className = "navActive";
    }
	
	document.getElementById("n"+nr).className = "navDeactive";
}

function nav(nr) {
	if (nr != "prev" && nr != "next") {
		document.getElementById("galleryimg").src = pic[nr-1];
		
		for (var i = 1; i<=pic.length; i++) {
			document.getElementById("n"+i).className = "navActive";
		}
		
		document.getElementById("n"+nr).className = "navDeactive";
	}
	
	else if(nr == "prev") {
	
		for (var i = 0; i<=pic.length-1; i++) {
			tmp = i + 1;
			
			if (i > 0) { document.getElementById("n"+tmp).className = "navActive"; }
			
			if (document.getElementById("galleryimg").src.indexOf(pic[i]) != -1 && i > 0) {
				document.getElementById("galleryimg").src = pic[i-1];
				document.getElementById("n"+i).className = "navDeactive";
				break;
			}
			
		}
		
	}

	else if(nr == "next") {
		for (var i = 0; i<=pic.length-1; i++) {
			tmp = i + 1;
			
			if (i < pic.length-1) { document.getElementById("n"+tmp).className = "navActive"; }
			
			if (document.getElementById("galleryimg").src.indexOf(pic[i]) != -1 && i < pic.length-1) {
				document.getElementById("galleryimg").src = pic[i+1];
				var next = i + 2;
				document.getElementById("n" + next).className = "navDeactive";
				break;
			}
			
		}
	}
}


/*----------------------------- images preloader -----------------------------*/

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) { //v4.0
		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 && document.getElementById) x=document.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]; 
    }
}