function externalLinks() {
	if (!document.getElementsByTagName) return;
	var anchors = document.getElementsByTagName("a");
	for (var i=0; i<anchors.length; i++) {
		var anchor = anchors[i];
		if (anchor.getAttribute("href") &&  anchor.getAttribute("rel") == "external")
		anchor.target = "_blank";
	}
}

function format_number(pnumber,decimals) {
	if (isNaN(pnumber)) { return 0};
	if (pnumber=='') { return 0};
	
	var snum = new String(pnumber);
	var sec = snum.split('.');
	var whole = parseFloat(sec[0]);
	var result = '';
	
	if(sec.length > 1){
		var dec = new String(sec[1]);
		dec = String(parseFloat(sec[1])/Math.pow(10,(dec.length - decimals)));
		dec = String(whole + Math.round(parseFloat(dec))/Math.pow(10,decimals));
		var dot = dec.indexOf('.');
		if(dot == -1){
			dec += '.'; 
			dot = dec.indexOf('.');
		}
		while(dec.length <= dot + decimals) { dec += '0'; }
		result = dec;
	}else{
		var dot;
		var dec = new String(whole);
		dec += '.';
		dot = dec.indexOf('.');		
		while(dec.length <= dot + decimals) { dec += '0'; }
		result = dec;
	}	
	return result;
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

function updateCookie(name,value,days) {
	createCookie(name,"",-1);
	createCookie(name,value,days);
}



function establishTopPosition() {
	var elsummary = document.getElementById('floatingsummary');
	var y = 0;
	while (elsummary!=null) {
		y += elsummary.offsetTop
		elsummary = elsummary.offsetParent;
	}
	return y;
}
function moveSummary() {
	var elsummary = document.getElementById('summary');
	var topPos = establishTopPosition();
	if( window.XMLHttpRequest ) { // IE 6 hates position fixed
		if (document.documentElement.scrollTop > topPos  || self.pageYOffset > topPos) {
			elsummary.style.position = 'fixed';
			elsummary.style.marginTop = '10px';
		}else{
			elsummary.style.position = 'absolute';
			elsummary.style.marginTop = '0';
		}
	}
}

window.onload = externalLinks;