var thisPage = "";
var windowNumber = 0;
var originalClassName = "";
var originalColor = "";
var mouseOverColor = "red";
var selectedColor = "#e9d95f";
var oldid = "";
var previousHTML = "";
    
NumberOfImagesToRotate = 5;

FirstPart = '<img src="extraimages/round';
LastPart = '.png" height="160" width="160">';

function printImage() 
{
	var r = Math.ceil(Math.random() * NumberOfImagesToRotate);
	document.write(FirstPart + r + LastPart);
}

function printPageImage() 
{
	var s = '<img src="' + thisPage + '">';		
	document.getElementById("pageImage").innerHTML = s;
}

function changeCursorToHand()
{
	document.body.style.cursor = 'hand';
}

function resetCursorToDefault() 
{
	document.body.style.cursor = 'default';
}

function openNewWindow(urlToOpen)
{
	windowNumber = (windowNumber * 1) + 1;
	window.open(urlToOpen,"newWindow" + windowNumber,"width=1000,height=600,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,copyhistory=yes,resizable=yes");
}

function setMouseOverClass(thisElement)
{
	originalClassName = thisElement.className;
	var newone = originalClassName + "MouseOver";
	
	alert(newone);
	return newone;
}

function setMouseOutClass()
{
	var reset = originalClassName;
	alert(reset);
	originalClassName = "";
	return reset;
}

function addRedArrow(elementid)
{
    if (oldid != "")
    {
        document.getElementById(oldid).innerHTML = previousHTML;
    }

    var thiselement = document.getElementById(elementid);
	previousHTML = thiselement.innerHTML;
	
	document.getElementById(elementid).innerHTML = '<img src=\"extraimages/redmarker.png\" />&nbsp;' + thiselement.innerHTML;
	oldid = elementid;
}

function trim(s)
{
	return rtrim(ltrim(s));
}

function ltrim(s)
{
	var l=0;
	while(l < s.length && s[l] == ' ')
	{	l++; }
	return s.substring(l, s.length);
}

function rtrim(s)
{
	var r=s.length -1;
	while(r > 0 && s[r] == ' ')
	{	r-=1;	}
	return s.substring(0, r+1);
}