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}

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}

function backCloseC()
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	else document.write('<a href="/Video/ComputerNetworking/ComputerNetworking.html">RogerBillings.info</a>');
}


function findPosX(obj)
{
	obj=eval('document.getElementById(obj)');
    var curleft = 0;
    if (obj.offsetParent)
    {
        while (obj.offsetParent)
        {
            curleft += obj.offsetLeft
            obj = obj.offsetParent;
        }
    }
    else if (obj.x)
        curleft += obj.x;
    return curleft;
} 

function findPosY(obj)
{
	obj=eval('document.getElementById(obj)');
    var curtop = 0;
    if (obj.offsetParent)
    {
        while (obj.offsetParent)
        {
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            obj = obj.offsetParent;
        }
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    else if (obj.y)
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    return curtop;
} 


function myCopy()
{
	document.write('<span style="color:#aaaaaa; font-family:verdana,helvetica,arial; font-size:7pt;">Copyright &copy; 2008-2010 Roger E. Billings.  All Rights Reserved.</span>');
}


function setFader()
{
	
	var sh = screen.availHeight;
	var ih = window.innerHeight;

	if(window.innerHeight)
	{
		document.getElementById('LImg').height=ih;
		document.getElementById('RImg').height=ih;
	}
	else
	{
		document.getElementById('LImg').height=sh;
		document.getElementById('RImg').height=sh;
	}
	
}

function timeFaderV(pic)
{
	var theOpac = document.getElementById(pic).style.opacity;
	if(theOpac == '100')
	{
	}
	else 
	{
		theOpac = theOpac * 100;
	}
	opacity(pic, theOpac, 15, 1000);
}


function timeFadeBackV(pic)
{
	var theOpac = document.getElementById(pic).style.opacity * 100;
		opacity(pic, theOpac, 100, 1000);
}


function timeFader()
{
	var theOpac = document.getElementById('BigPic').style.opacity;
	if(theOpac == '100')
	{
	}
	else 
	{
		theOpac = theOpac * 100;
	}
	opacity('BigPic', theOpac, 15, 1000);
}


function timeFadeBack()
{
	var theOpac = document.getElementById('BigPic').style.opacity * 100;
		opacity('BigPic', theOpac, 100, 1000);
}


function opacity(id, opacStart, opacEnd, millisec)
{ 

    //speed for each frame 
    var speed = Math.round(millisec / 100); 
    var timer = 0; 

//    determine the direction for the blending, if start and end are the same nothing happens 
    if(opacStart > opacEnd) { 
        for(i = opacStart; i >= opacEnd; i--) { 
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed)); 
            timer++; 
        } 
    } else if(opacStart < opacEnd) { 
        for(i = opacStart; i <= opacEnd; i++) 
            { 
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed)); 
            timer++; 
        } 
    } 
} 

//change the opacity for different browsers
function changeOpac(opacity, id) 
{
    var object = document.getElementById(id).style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
}


//-->