function reader() {
	
	var allcookies = document.cookie;
	
	var pos = allcookies.indexOf("menuname=");
	if (pos != -1) {
		var start = pos + 9;
		var end = allcookies.indexOf(";", start);
		if (end == -1) end = allcookies.length;
			var value = allcookies.substring(start, end);
		
				value = unescape(value);
				var x = value.slice(1,-1);
		
		if (document.getElementById) {
					val = document.getElementById(x);

					document.getElementById(x).style.backgroundColor = "#0F527C";
					document.getElementById(x).style.border = "1pt solid #0F527C";
					
		}
			
	}	

	var pos2 = allcookies.indexOf("dad=");
	if (pos2 != -1) {
		var start2 = pos2 + 4;
		var end2 = allcookies.indexOf(";", start2);
		if (end2 == -1) end2 = allcookies.length;
			var value2 = allcookies.substring(start2, end2);
				value2 = unescape(value2);
	}
	
	if (value2 == "\"sectOne\"") { 
	
		swap('sectOne', 'sectTwo', 'sectThree', 'sectFour', 'sectFive', 'sectSix', 'sectSeven', 'sectEight'); return false;
				
	} else if (value2 == "\"sectTwo\"") { 
		
		swap('sectTwo', 'sectOne', 'sectThree', 'sectFour', 'sectFive', 'sectSix', 'sectSeven', 'sectEight');return false;
				
	} else if (value2 == "\"sectThree\"") { 
	
		swap('sectThree','sectOne', 'sectTwo', 'sectFour','sectFive','sectSix','sectSeven', 'sectEight');return false;
		
	} else if (value2 == "\"sectFour\"") { 
		
		swap('sectFour', 'sectOne', 'sectTwo', 'sectThree', 'sectFive', 'sectSix', 'sectSeven', 'sectEight');return false;
	
	} else if (value2 == "\"sectFive\"") { 
		
		swap('sectFive', 'sectOne', 'sectTwo', 'sectThree', 'sectFour', 'sectSix', 'sectSeven', 'sectEight');return false;
	
	} else if (value2 == "\"sectSix\"") { 
		
		swap('sectSix', 'sectOne', 'sectTwo', 'sectThree', 'sectFour', 'sectFive', 'sectSeven', 'sectEight');return false;
	
	} else if (value2 == "\"sectSeven\"") { 
		
		swap('sectSeven', 'sectOne', 'sectTwo', 'sectThree', 'sectFour', 'sectFive', 'sectSix', 'sectEight');return false;
	
	}
	
}


function swap(targetId, a, b, c, d, e, f, g) {
	
	if (document.getElementById) {
		
		target = document.getElementById(targetId);
		offa = document.getElementById(a);
		offb = document.getElementById(b);
		offc = document.getElementById(c);
		offd = document.getElementById(d);
		offe = document.getElementById(e);
		offf = document.getElementById(f);
		offg = document.getElementById(g);
		
			if (target.style.display == "none") {
			
				target.style.display = "";
				offa.style.display = "none";
				offb.style.display = "none";
				offc.style.display = "none";
				offd.style.display = "none";
				offe.style.display = "none";
				offf.style.display = "none";
				offg.style.display = "none";
			
			}  else  {
	
			target.style.display = "none";
		} 
	}	
	
}


function whichButton(button, dad) {

	var date = new Date();
	
	x = (date.getMinutes() + 2); /* Cookie expires after 2 minutes */
	
	date.setMinutes(x);
	
	document.cookie = "menuname=\""+button+"\"; path=/; expires=\""+date+"\"";
	document.cookie = "dad=\""+dad+"\"; path=/; expires=\""+date+"\"";
}

/* ------------------------- NOT USED ANYMORE ------------------------------------*/
function delcookie(dad) {
	var olddate = new Date();
	y = (olddate.getYear() -10);
	olddate.setYear(y);
	document.cookie = "dad=\""+dad+"\"; path=/; expires=\";"+olddate+"\"";
}
/* -------------------------------------------------------------------------------*/

function getWindowHeight() {

var windowHeight = 0;

	if (typeof(window.innerHeight) == 'number') {
		windowHeight = window.innerHeight;
	
	} else {
	
		if (document.documentElement && document.documentElement.clientHeight) {
			windowHeight = document.documentElement.clientHeight;
	
			} else {
	
			if (document.body && document.body.clientHeight) {
				windowHeight = document.body.clientHeight;
			}
		}
	}
	return windowHeight;
}

function setFooter() {
	
	if (document.getElementById) {
		var windowHeight = getWindowHeight();

		if (windowHeight > 0) {

			document.getElementById('block').style.height = (windowHeight-45)+"px";						

			var contentHeight = document.getElementById('block').offsetHeight;
			var footerElement = document.getElementById('footer');
			var footerHeight  = footerElement.offsetHeight;

				if (windowHeight - (contentHeight + footerHeight) >= 0) {
					footerElement.style.top = (windowHeight - (contentHeight + footerHeight)) + 'px';
	
				} else {

					footerElement.style.top = '0px';

				}
			}
		}
}

function platformDetect() {
	var x = navigator.appName;
		if((navigator.appVersion.indexOf("Win") != -1) && (x != "Netscape"))

	{
		document.getElementById('sub').style.position = "absolute";
	}

}


function MM_findObj(n, d) { //v4.01
	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 && d.getElementById) x=d.getElementById(n); 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 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];}}
}


/* SLIDESHOW */
var image1=new Image()
image1.src="images/sentryArray/windfarm2.jpg"
var image2=new Image()
image2.src="images/sentryArray/silos2.jpg"
var image3=new Image()
image3.src="images/sentryArray/BulkGasTanks2.jpg"
var image4=new Image()
image4.src="images/sentryArray/montage2.jpg"
var image5=new Image()
image5.src="images/sentryArray/enviro2.jpg"
var image6=new Image()
image6.src="images/sentryArray/wetlands.jpg"
/* SLIDESHOW */


		
		window.onload = function() {
			reader();
			setFooter(); 
			platformDetect();
			MM_preloadImages('images/ST_toproller_r2_c1_f2.gif','images/ST_toproller_r2_c2_f2.gif','images/ST_toproller_r2_c3_f2.gif','images/ST_toproller_r2_c4_f2.gif','images/ST_toproller_r2_c5_f2.gif','images/ST_toproller_r2_c6_f2.gif');
		}
		window.onresize = function() {
			setFooter();
		}