function ShowContent(d) {
document.getElementById(d).style.display = "block";
document.getElementById(d+"show").style.display = "none";  // hide the plus sign (show button) cuz we're showing the hidden block of text
document.getElementById(d+"hide").style.display = "inline";  // show the minus sign (hide button)
}
function HideContent(d) {
document.getElementById(d).style.display = "none";
document.getElementById(d+"hide").style.display = "none"; // hide the minus sign (hide button) cuz we're hiding the hidden block of text
document.getElementById(d+"show").style.display = "inline";  // show the plus sign again (show button)
}
/*function ReverseDisplay(d) {
if(document.getElementById(d).style.display == "none") { document.getElementById(d).style.display = "block"; }
else { document.getElementById(d).style.display = "none"; }
}*/