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_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=="show")?"visible":(v=="hide")?"hidden":v; }
    obj.visibility=v; }
}

function VS_showHideLayers() { //v6.0
  var i,p,v,obj,args=VS_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=="block")?"block":(v=="none")?"none":v; }
    obj.display=v; }
}

function KA_showHideLayers() { //v3.0
  var i,p,v,obj,args=KA_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
 if (obj.style) { obj=obj.style; v=(obj.display=="block")?"none":"block"; }
 obj.display=v; }
}

function setPage(form_name,n) {
	// procedure will be called to move another page in navigation
	var p = MM_findObj(form_name+'page_nr')
	switch(n) {
		case 'begin':	
			if (p.selectedIndex==0) {
				alert(error_firstpage)
				return false
			} else {
				p.selectedIndex=0
			}
			break;
		case 'prev':
			if (p.selectedIndex==0) {
				alert(error_firstpage)
				return false
			} else {
				p.selectedIndex=p.selectedIndex-1
			}
			break;
		case 'next':
			if (p.selectedIndex==p.length-1) {
				alert(error_lastpage)
				return false
			} else {
				p.selectedIndex=p.selectedIndex+1
				
			}
			break;
		case 'end':
			if (p.selectedIndex==p.length-1) {
				alert(error_lastpage)
				return false
			} else {
				p.selectedIndex=p.length-1
			}
			break;
	}
	return true;
}

function selectEdit(form_name,val) {

  var s=document.forms[form_name].ids
  if (s.length==null) {
    s.checked=true
  } else {
    for (i=0; i<s.length; i++) {
      if (s[i].value == val) {
  	    s[i].checked=true
		  } else {
		    s[i].checked=false
	 		}
		}
	}
}

function fAsk(what) {
	// procedure will be called if we want to make ask for confirmation
  a=confirm(what)
  if (a) {
    return true
  } else {
    return false
  }
}