function checkSearch() {
	var f;
	f = document.MainSearchForm;
	if ( f.search.value=='Search' ) {
		f.search.value='';
	}
}

/*stylesheet picking functions*/
function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
}

function getActiveStyleSheet() {
	var i, a;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
	if(a.getAttribute("rel").indexOf("style") != -1
		&& a.getAttribute("title")
		&& !a.disabled) return a.getAttribute("title");
	}
	return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

/*cookies - used by several places*/

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

function changeGraphic(id) {
	eval('document.getElementById("' + id + '").style.background = "url(/img/nav/toptabselectedright.gif) no-repeat right top"');
}
function revertGraphic(id) {
	eval('document.getElementById("' + id + '").style.background = "url(/img/nav/toptaboffright.gif) no-repeat right top"');
}
function hideSidebar() {
	setActiveStyleSheet("Hide Right Sidebar");
	createCookie("hideSidebar","true",365)
}
function showSidebar() {
	setActiveStyleSheet("Normal");
	createCookie("hideSidebar","false",365)
}

function view(id,toggle){
	if (gId(id)) {
		toggle = (toggle==false)?"none":"";
		gId(id).style.display = toggle;
	}
}

function gId(id) {
	return document.getElementById(id);
}


function popHelp(sURL, width, height) {
	msgWindow = window.open(sURL, 'helpWin', 'width=' + width + ',height=' + height + ',resizable=yes,toolbar=no,scrollbars=yes');
	msgWindow.focus();
}