// JavaScript Document

/* image swapping code */
function imagedata(url,title,height,width)
{this.url=url;					// url of image
 this.title=title;				// image title (alt text)
 this.height=height;			// image height
 this.width=width;				// image width
};

var currentimage=0;				// current displayed image
var imageresize=false;			// if the main image will resize (PhotoAlbum sets in ASPX code)

var imagearray=new Array();
/* imagedata object should be added to this array. see PhotoAlbum as an example */

// display image n (0-based) using image control ctl and optional label (title)
function DisplayImage(n)
{var ctl=document.getElementById('imgMainPhoto');
 var labelctl=document.getElementById('labelMainPhoto');
 if (ctl!=null)
 
     		
   // is image within imagedata range
   if (n>=0 && n<imagearray.length)
     {ctl.src=imagearray[n].url;
      ctl.title=imagearray[n].title;
      // optionally resize
      if (imageresize)
        {ctl.width=imagearray[n].width;
	     ctl.height=imagearray[n].height;
        }
      // optional label control  
      if (labelctl!=null)
        labelctl.innerHTML=imagearray[n].title;
	  currentimage=n;    
     };
 UpdateNavigation();
};

function UpdateNavigation()
{var pctl=document.getElementById('PrevDiv');
 var nctl=document.getElementById('NextDiv');
 if (pctl!=null) pctl.style.visibility=(imagearray.length>0)?'visible':'hidden';				
 if (nctl!=null) nctl.style.visibility=(imagearray.length>0)?'visible':'hidden';
}

function DisplayPreviousImage()
{
  if (currentimage==0)
    currentimage = imagearray.length;
	
  DisplayImage(--currentimage);
}

function DisplayNextImage()
{
  if (currentimage==imagearray.length-1)
    currentimage = -1;

   DisplayImage(++currentimage);
}

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 popUp(URL, s_width, s_height) {
	if(!s_width) {
		s_width = 400;
	}
	if(!s_height) {
		s_height = 400;
	}

	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width="+s_width+",height="+s_height+",left = 440,top = 312');");

}