var detect = navigator.userAgent.toLowerCase();
var OS,browser,version,total,thestring;
var yPos1;
/*-----------------------------------------------------------------------------------------------*/

//Browser detect script origionally created by Peter Paul Koch at http://www.quirksmode.org/
function getBrowserInfo() {
	if (checkIt('konqueror')) {
		browser = "Konqueror";
		OS = "Linux";
	}
	else if (checkIt('safari')) browser 	= "Safari"
	else if (checkIt('omniweb')) browser 	= "OmniWeb"
	else if (checkIt('opera')) browser 		= "Opera"
	else if (checkIt('webtv')) browser 		= "WebTV";
	else if (checkIt('icab')) browser 		= "iCab"
	else if (checkIt('msie')) browser 		= "Internet Explorer"
	else if (!checkIt('compatible')) {
		browser = "Netscape Navigator"
		version = detect.charAt(8);
	}
	else browser = "An unknown browser";

	if (!version) version = detect.charAt(place + thestring.length);

	if (!OS) {
		if (checkIt('linux')) OS 		= "Linux";
		else if (checkIt('x11')) OS 	= "Unix";
		else if (checkIt('mac')) OS 	= "Mac"
		else if (checkIt('win')) OS 	= "Windows"
		else OS 								= "an unknown operating system";
	}
}

function checkIt(string) {
	place = detect.indexOf(string) + 1;
	thestring = string;
	return place;
}
/*-----------------------------------------------------------------------------------------------*/
//Event.observe(window, 'load', getBrowserInfo, false);

function display_ol(page, clipfile){
	getBrowserInfo();
	if(browser == 'Internet Explorer'){
		if (self.pageYOffset) {
			yPos1 = self.pageYOffset;
		} else if (document.documentElement && document.documentElement.scrollTop){
			yPos1 = document.documentElement.scrollTop; 
		} else if (document.body) {
			yPos1 = document.body.scrollTop;
		}
		window.scrollTo(0, 0); 

		bod = document.getElementsByTagName('body')[0];
		bod.style.height = '100%';
		bod.style.overflow = 'hidden';
  
		htm = document.getElementsByTagName('html')[0];
		htm.style.height = '100%';
		htm.style.overflow = 'hidden'; 
	}
	document.getElementById('myoverlay').style.display='block';
	document.getElementById('disclosure_box').style.display='block';
	return true;
}
function ol_close(){
	document.getElementById('disclosure_box').style.display='none';
	document.getElementById('myoverlay').style.display='none';

	if(browser == 'Internet Explorer'){
		window.scrollTo(0, yPos1);

		bod = document.getElementsByTagName('body')[0];
		bod.style.height = 'auto';
		bod.style.overflow = 'auto';
  
		htm = document.getElementsByTagName('html')[0];
		htm.style.height = 'auto';
		htm.style.overflow = 'auto'; 
	}
}