function doSection (secNum){
	//display the section if it's not displayed; hide it if it is displayed
	if (secNum.style.display=="none"){secNum.style.display=""}
	else{secNum.style.display="none"}
}

function noSection (secNum){
	//remove the section when user clicks in the opened DIV
	if (secNum.style.display==""){secNum.style.display="none"}
}

function doExpand(paraNum,arrowNum){
    //expand the paragraph and rotate the arrow; collapse and rotate it back
    if (paraNum.style.display=="none") {
        paraNum.style.display="";
        arrowNum.src="/img/arrowdn.gif"
    }
    else {
        paraNum.style.display="none";
        arrowNum.src="/img/arrowrt.gif"
    }
}