//********************************************************************************

function popwin(theurl,thename,thewidth,theheight,special,left,top,scroll,resize) {
				if (special==1) {
						var left=(screen.width-thewidth)/2;
						var top=(screen.height-theheight)/2;
					}
				var popwin = window.open(theurl,thename,"left="+left+",top="+top+",width="+thewidth+",height="+theheight+",toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars="+scroll+",resizable="+resize+"");
			} 
//********************************************************************************


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_showHideLayers() { //v3.0
  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 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_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];}
}

//********************************************************************************


function window_shut(msg) {
	if(confirm(msg)) {
		top.window.self.close();
	}
}

//********************************************************************************

function open_full(url,id) {
	window.open(url,id,'type=fullWindow,fullscreen,scrollbars=yes');
}

//********************************************************************************

function guestbook_submit() {
	if(document.forms[0].elements['name'].value=="") {
		alert("Please enter your name");
	} else if(document.forms[0].elements['comment'].value=="") {
		alert("Please enter a comment");
	} else {
		//ok, so send
		document.forms[0].submit();
	}
}

//********************************************************************************

function user_login() {
	if(document.forms[0].elements['name'].value=="") {
		alert("Please enter your 'USERNAME'!");
	} else if(document.forms[0].elements['password'].value=="") {
		alert("Please enter a 'PASSWORD'!");
	} else {
		//ok, so send
		document.forms[0].submit();
	}
}

/*function user_register() {
	//get the list of items to check
	var checklist=document.forms['register'].elements['varlist'].value.split("|");
	var str="*****************************\nPlease correct the following errors;\n*****************************\n";
	var error=false;
	
	//loop through looking for errors
	for(i=0;i<checklist.length;i++) {
		if(document.forms['register'].elements[checklist[i]].value=="") {
			str+="\nEmpty field : '"+checklist[i]+"'"; 
			error=true;
		}
	}
	
	//done?
	if(error) {
		//errors
		alert(str);
	} else {
		//submit
		document.forms['register'].submit();
	}
}
*/
//********************************************************************************

function school_select() {
	if(document.forms[0].elements['search_select'].value=="") {
		//no school was selected
		alert("Please select a schoool from the list");
	} else {
		//go to the profile
		document.location.href="profile.php?id="+document.forms[0].elements['search_select'].value;
	}
}

function school_search() {
	var types=Array("pupil","school","keyword");
	var found=false;
	for(i=0;i<types.length;i++) {
		(document.forms[1].elements['check_'+types[i]].checked) ? found=true : null;
	}
	//errors?
	if (document.forms[1].elements['search_string'].value=="") {
		alert("Please enter a search string!");
	} else if(!found) {
		alert("Please select at least one search method!");
	} else {
		document.forms[1].submit();
	}
}


//********************************************************************************
//*NAV FUNCTIONS

var nav_items=Array("home","profile","diary","gallery","video","production","comments","register");

function nav_make(_type,_skips,_section) {
	i=0;
	while(i<nav_items.length) {
		if((_type!="short" || i==0 || i==nav_items.length-1) && _skips.indexOf(nav_items[i])==-1) { 
			//seperator
			if(i!=0) {
				//random num
				var num= Math.floor(Math.random()*3)+1;
				//make
				document.writeln("<img src=\"gfx/nav_sep"+num+".gif\" width=\"20\" height=\"42\" alt=\"\">");	
			}
			//item
			img="./gfx/nav_"+nav_items[i]+".gif";
			nolink=false;
			if(nav_items[i]==_section) {
				img="./gfx/nav_"+nav_items[i]+"_roll.gif";
				nolink=true;
			}
			if(!nolink) { document.writeln("<a href=\"#\" onclick=\"nav_click('"+nav_items[i]+"');\" onfocus=\"blur();\" onmouseover=\"nav_roll('"+nav_items[i]+"','_roll')\" onmouseout=\"nav_roll('"+nav_items[i]+"','')\">"); }
			document.writeln("<img src=\""+img+"\" border=\"0\" alt=\""+nav_items[i].toUpperCase()+"\" name=\"nav_"+nav_items[i]+"\" id=\"nav_"+nav_items[i]+'_'+_type+"\">");
			if(!nolink) { document.writeln("</a>"); }
		}
		//inc
		i++;
	}
}

function nav_click(id) {
	document.location.href=id+".php?id="+user_id+"&page=1";
}

function nav_roll(id,img) {
	MM_swapImage('nav_'+id,'','gfx/nav_'+id+img+'.gif');
}


//********************************************************************************