function popwin(theURL)
{
 window.open(theURL,"","height=350,width=600,scrollbars=no,resizable=no,screenX=25,left=25,screenY=25,top=25");
}

function classChange(id, newClass)
{
	identity=document.getElementById(id);
	identity.className=newClass;
}

var content = new Array(
'<img src="images/hprotate1.jpg" width="881" height="259" border="0" alt=""><br><div id="hpthumb"><img src="images/hpthumb.png" width="220" height="75" border="0" alt=""></div>',
'<img src="images/hprotate2.jpg" width="881" height="259" border="0" alt=""><br><div id="hpthumb"><img src="images/hpthumb.png" width="220" height="75" border="0" alt=""></div>',
'<img src="images/hprotate3.jpg" width="881" height="259" border="0" alt=""><br><div id="hpthumb"><img src="images/hpthumb.png" width="220" height="75" border="0" alt=""></div>'
)

/* Specifies the period of time between updates:
 month - once a month
 date - once per every day of the month (repeats the next month)
 weekday - once per every day of the week (repeats the next week)
 hour - once per hour (repeats the next day)
 request - once per browser request (default)
*/

var updatePeriods = new Array("month","date","weekday","hour","request")

// Invoked to display rotated HTML content in a Web page. The period
// argument should be an element of the updatePeriods array.

function displayRotatedContent(period) {
 var updatePeriod = -1
 for(var i=0;i<content.length;++i) {
 if(period.toLowerCase() == updatePeriods[i].toLowerCase()) {
 updatePeriod = i
 break
 }
 }
 var s = selectHTML(updatePeriod)
 document.write(s)
}

function selectHTML(updatePeriod) {
 var n = 0
 var max = content.length
 var d = new Date()
 switch(updatePeriod) {
 case 0: // Month (0 - 11)
 n = d.getMonth()
 break
 case 1: // Date (1 - 31 scaled to 0 - 30)
 n = d.getDate() - 1
 break
 case 2: // Weekday (0 - 6)
 n = d.getDay()
 break
 case 3: // Hour (0 - 23)
 n = d.getHours()
 break
 case 4: // Request (Default)
 default:
 n = selectRandom(max)
 }
 n %= max 
 return content[n]
}

// Select a random integer that is between 0 (inclusive) and max (exclusive)
function selectRandom(max) {
 var r = Math.random()
 r *= max
 r = parseInt(r)
 if(isNaN(r)) r = 0
 else r %= max
 return r
}

window.defaultStatus ="Advanced Programs Inc. Your TEMPEST Partner";