function SetCookie(cookieName,cookieValue,nDays) {
 var today = new Date();
 var expire = new Date();
 if (nDays==null || nDays==0) nDays=1;
 expire.setTime(today.getTime() + 3600000*24*nDays);
 document.cookie = cookieName+"="+escape(cookieValue)
                 + ";expires="+expire.toGMTString();
}



function readCookie(cookieName) {
 var theCookie=""+document.cookie;
 var ind=theCookie.indexOf(cookieName);
 if (ind==-1 || cookieName=="") return ""; 
 var ind1=theCookie.indexOf(';',ind);
 if (ind1==-1) ind1=theCookie.length; 
 return unescape(theCookie.substring(ind+cookieName.length+1,ind1));
}



/* swap base font size */
function fontSize(val){
    document.getElementById("wrapperMain").style.fontSize = val+'em';
    SetCookie("fontSize",document.getElementById("wrapperMain").style.fontSize,365);
    return false;
}

function initialFontSize(){
    document.getElementById("wrapperMain").style.fontSize = readCookie("fontSize");
}







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";
    }
}
}

window.onload=externalLinks;