swapContent = function(contentURL){
	new Ajax.Updater('main', contentURL, {asynchronous:true});
}
swapOpacity = function(elm){
    var blox = new Array();
    blox[0] = "bartlett";
    blox[1] = "chancel";
    blox[2] = "louden";
    blox[3] = "noorani";
    blox[4] = "pomerantz";
    blox[5] = "wiedenhofer";

    for (var y = 0; y < 6; y++){
        if(blox[y] == elm){
            document.getElementById(blox[y]).className = 'op_full';
        } else {
            document.getElementById(blox[y]).className = 'op_partial';
        }
    }
}