var isNetscape = navigator.appName.substring(0,3) == "Net";
var idImg = '';
var fzoom=1;
var d = null;
if(isNetscape)
    document.captureEvents(Event.MOUSEMOVE);
document.onmousemove = get_mouse;	
document.onkeypress = getKey;
function get_mouse(e) {  	
	if (d) {
		var offsetx=16;
		var offsety=5;
	    var x = (isNetscape) ? e.pageX : event.x+document.body.scrollLeft;
	    var y = (isNetscape) ? e.pageY : event.y+document.body.scrollTop;
	    if (x<(-offsetx+4))
	      d.style.left = 2 +'px';
	    else
	    {
	      if (x>(window.innerWidth-180))
	        d.style.left = window.innerWidth+offsetx-180 +'px';
	      else
	        d.style.left = x+offsetx +'px';
	    }	
	    d.style.top = y+offsety +'px';
	}
}
function getKey(keyStroke) {	
	eventChooser = (isNetscape) ? keyStroke.which : event.keyCode;	
	which = String.fromCharCode(eventChooser).toLowerCase();	
	if (which=='+') zoom(idImg,1.25);
	if (which=='-') zoom(idImg,0.8);
}

function showDescr(id){
	var des = document.getElementById(id);
	if (des) {		
		var msg = des.innerHTML;
		if (msg.length>0) {
			showDiv('descr');
			d.innerHTML = msg;
		}
	}
}

function showDiv(id) {
	d = document.getElementById(id);
	if (d)
		d.style.display = 'block';	
}

function hideDiv(id) {
	d = document.getElementById(id);
	if (d)
		d.style.display = 'none';	
	d = null;
}

function setclass(el,cl) {
	el.className=cl;
}

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];}
}