var btmNavClosedHeight = 30;
var btmNavOpenHeight = 250;
var btmNavI = 30;
var btmNavOpen = 0;
var btmNavClosed = 0;
var btmNavPos = 0;
var viewportwidth;
var viewportheight;
var btmOpen = 0;
 
// the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight
 
 if (typeof window.innerWidth != 'undefined')
 {
      viewportwidth = window.innerWidth,
      viewportheight = window.innerHeight
 }
 
// IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)

 else if (typeof document.documentElement != 'undefined'
     && typeof document.documentElement.clientWidth !=
     'undefined' && document.documentElement.clientWidth != 0)
 {
       viewportwidth = document.documentElement.clientWidth,
       viewportheight = document.documentElement.clientHeight
 }
 
 // older versions of IE
 
 else
 {
       viewportwidth = document.getElementsByTagName('body')[0].clientWidth,
       viewportheight = document.getElementsByTagName('body')[0].clientHeight
 }

function btmNavMouseOver() {
	if (btmNavI <= btmNavOpenHeight-10 && btmNavClosed != 1) {
		btmNavOpen = 1;
		if (btmNavI >= 200) {
			btmNavI = btmNavI + 5;
			btmNavPos = btmNavPos - 5;
			} else {
			btmNavI = btmNavI + 10;
			btmNavPos = btmNavPos - 10;
			}
		document.getElementById('btmNavWrap').style.height = btmNavI+'px';		
		document.getElementById('btmNavWrap').style.top = btmNavPos+'px';		
		setTimeout("btmNavMouseOver();",0);
		} else {
		btmNavOpen = 0;
		}
	}
	
function btmNavMouseOut() {
		if (btmNavI >= btmNavClosedHeight+10 && btmNavOpen != 1) {
			btmNavClosed = 1;
			if (btmNavI <= 70) {
				btmNavI = btmNavI - 5;
				btmNavPos = btmNavPos + 5;
				} else {
				btmNavI = btmNavI - 10;
				btmNavPos = btmNavPos + 10;
				}
			document.getElementById('btmNavWrap').style.top = btmNavPos+'px';
			document.getElementById('btmNavWrap').style.height = btmNavI+'px';		
			setTimeout("btmNavMouseOut();",0);
			} else {
			btmNavClosed = 0;
			}
	}

function loadPage() {
	// Get the height of the main body div
	var mainWrap = document.getElementById('bodyWrap').offsetHeight;
	
	// Calculate & set the position of the menu
	if (viewportheight > mainWrap) {
		btmNavPos = viewportheight - btmNavClosedHeight;
		} else {
		btmNavPos = mainWrap - btmNavClosedHeight;
		}
	document.getElementById('btmNavWrap').style.top = btmNavPos+'px';
	}
	
function btmAction() {
	if (btmOpen == 0) {
		document.getElementById('btmTabImg').src = 'images/contact-bar-tab_on.png';
		btmNavMouseOver();
		btmOpen = 1;
		} else {
		document.getElementById('btmTabImg').src = 'images/contact-bar-tab.png';
		btmNavMouseOut();
		btmOpen = 0;
		}	
	}
	
// Size left and right
function setContentHeight() {
	var leftHeight = document.getElementById('leftContent').offsetHeight;
	var rightHeight = document.getElementById('rightContent').offsetHeight;

	if (rightHeight > 0) { 
		document.getElementById('leftContent').style.height = rightHeight-32+'px';
	    } else {
		document.getElementById('rightContent').style.height = leftHeight+32+'px';
		}

	}