// ***** javascript functions for rollovers etc. (MM) ***** //

function handleResize(){
	location.reload()
	return false
}

function restoreImage(img,imgsrc){
	if (document.layers){
		eval("document.layers.menus.document."+img+".src="+"'"+imgsrc+"'")
	}
	if (document.all){
		eval("document."+img+".src="+"'"+imgsrc+"'")
		window.event.cancelBubble = true;
	}
}

function showit(container){
	if (document.layers){
		eval("document.layers."+container+'.visibility="visible"')
	}
	if (document.all){
		eval("document.all."+container+".style.visibility="+'"visible"')
	}
}

function hideit(container){
	if (document.layers){
		document.layers[container].visibility="hidden"
	}
	if (document.all){
		eval("document.all."+container+".style.visibility="+'"hidden"')
	}
}

function swapImage(img,imgsrc){
	if(document.images){
		if(document.layers){
			eval("document.layers.menus.document."+img+".src='"+imgArray[imgsrc].src+"'")
		}
		else{
			document.images[img].src=imgArray[imgsrc].src
		}
	}
}

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) { //v3.0
  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); 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];}
}


function checkQuiz(f) {
	var i = 0;
	var q = 1;
	var not_ans = "";
	while (!f.elements[i++].type == "radio") {}
	while (i < f.length-1) {
		var blnans = false;
		for(var j=0;j<3;j++) {
			if (f.elements[i+j].checked) blnans = true;
		}
		if(!blnans) not_ans += "\nQuestion " + q;
		q++;
		i += j;
	}
	if (not_ans != "") {
		alert("You did not answer all the questions.\nYou missed:\n" + not_ans + "\n\nThe questions have been reset\nso please read them carefully.\n");
		f.submit.value = "";
		return false;
	} else {
		return true;
	}
}

// Function name: popup()
// Parameters:
// 	url    - The URL of the popup.
// 	height - (optional, default=480) The height of the popup.
// 	width  - (optional, default=500) The width of the popup.
//
function popup(url) {
	var winHeight = 480
	var winWidth = 500
	var showscrollbar = "yes"
	
	// only set the height and width if both are specified
	if (popup.arguments.length > 2) {
		winHeight = popup.arguments[1];
		winWidth = popup.arguments[2];
	}
	
	// set whether to show vertical scrollbar
	if (popup.arguments.length > 3) {
		showscrollbar = ((popup.arguments[3] == true)?"yes":"no");
	}
	
	window.open(url,"","scrollbars=" + showscrollbar + " ,height=" + winHeight + ",width=" + winWidth + ",left=50,top=50");
}

// This function is called by popups in order to close them.
function closepopup() {
	window.close();
}