//Script to dynamically position paging div

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 getWindowWidth() {
	var windowWidth = 0;
	if (typeof(window.innerWidth) == 'number') {
		windowWidth = window.innerWidth;
	}
	else {
		if (document.documentElement && document.documentElement.clientWidth) {
			windowWidth = document.documentElement.clientWidth;
			}
		else {
			if (document.body && document.body.clientWidth) {
				windowWidth = document.body.clientWidth;
			}
		}
	}
	return windowWidth;
}

function setPager() {
	var isMacIE = (navigator.userAgent.indexOf("Mac") && navigator.userAgent.indexOf("MSIE"));
	if (document.getElementById) {
		var preRt = 189;
		var Marg = 0;
		var preMain = 94;
		var preContent = 95;
		var pagerOffset = 40;
		var botOffset = 65;
		var largerHt = 0;
		var pagerrt = 76;
		var pagerrabs = 44;
		var windowWidth = getWindowWidth();
		var windowHeight = getWindowHeight();
		if (windowHeight > 0) {
			var pagerElement = document.getElementById('pager');
			var pagerHeight  = pagerElement.offsetHeight;
			var pagerWidth = pagerElement.offsetWidth;
			var contentElement = document.getElementById('content');
			var contentHeight  = contentElement.offsetHeight;
			var mainElement = document.getElementById('main');
			var mainHeight = mainElement.offsetHeight;
			var mainWidth = mainElement.offsetWidth;
			var wrapElement = document.getElementById('wrapper');
			var wrapWidth = wrapElement.offsetWidth;
			Marg = (Math.round((windowWidth - wrapWidth)/2));
			var rtnavHeight = 0;
			var rtnavElement = document.getElementById('rtnav');
			if (rtnavElement !=null){rtnavHeight = rtnavElement.offsetHeight;}
			if (contentHeight  >= rtnavHeight){largerHt = contentHeight;}
			else {largerHt = rtnavHeight;}
			//TODO add check for diff between content and rtnav to see if necessary add pager and botoffset
			var inMain = preContent + largerHt + pagerOffset + pagerHeight + botOffset;
			mainElement.style.height = inMain + 'px';
			var enufWidth =  Marg > 0;
			var enufHeight = (windowHeight - (preRt + rtnavHeight + pagerOffset + pagerHeight + botOffset )) > 0;
		    if (enufHeight && enufWidth)  {
				pagerElement.style.position = 'fixed';
				pagerElement.style.top = (preRt + rtnavHeight + pagerOffset) + 'px';
				pagerElement.style.left = (Marg + wrapWidth - (pagerrabs + pagerWidth + 8)) + 'px';
				}
			else {pagerElement.style.position = 'absolute';
				pagerElement.style.top = ((preMain + inMain) - (pagerHeight + botOffset)) + 'px';
				pagerElement.style.left = (wrapWidth - (pagerrabs + pagerWidth)) + 'px';
		 			}
			//IE Mac supports position:fixed BUT such positioning disables pointer events so roll-overs don't work		
			if (isMacIE!=-1) {pagerElement.style.position = 'absolute';
				pagerElement.style.top = ((preMain + inMain) - (pagerHeight + botOffset)) + 'px';
				pagerElement.style.left = (wrapWidth - (pagerrabs + pagerWidth)) + 'px';
		 			}
				}
		}
}
// JavaScript Document