var objRef, styleRef;
if (is_nav47 == true){   //for Nav these are blank
    objRef = "."
    styleRef = ""
}
if (is_ie4up == true) {  //for IE the are set
    objRef = ".all."
    styleRef = ".style"
}

if (is_nav6 == true) {   //for Nav 6 these are blank
    objRef = '.getElementById("'
    styleRef = '").style'

}

function hideall() { 

eval("document" + objRef + "section1" + styleRef + ".visibility = 'hidden'");
eval("document" + objRef + "section2" + styleRef + ".visibility = 'hidden'");
eval("document" + objRef + "section3" + styleRef + ".visibility = 'hidden'");
eval("document" + objRef + "section4" + styleRef + ".visibility = 'hidden'");
eval("document" + objRef + "section5" + styleRef + ".visibility = 'hidden'");
eval("document" + objRef + "section6" + styleRef + ".visibility = 'hidden'");
eval("document" + objRef + "section7" + styleRef + ".visibility = 'hidden'");
} 

var currentsection="section1";

function show(section){ 
       hideall();
       eval("document" + objRef  + section + styleRef + ".visibility = 'visible'"); 
} 

function hide() {
show(currentsection);
}

function showperson(person){ 
       eval("document" + objRef +  person + styleRef + ".visibility = 'visible'"); 
} 

function hideperson(person){ 
       eval("document" + objRef  + person + styleRef + ".visibility = 'hidden'"); 
}