function getCookie(c_name) {
	if (document.cookie.length>0)
	  {
	  c_start=document.cookie.indexOf(c_name + "=")
	  if (c_start!=-1)
		{ 
		c_start=c_start + c_name.length+1 
		c_end=document.cookie.indexOf(";",c_start)
		if (c_end==-1) c_end=document.cookie.length
		return unescape(document.cookie.substring(c_start,c_end))
		} 
	  }
	return ""
}

function setCookie( name, value, path, expires, domain, secure ) {
	// set time, it's in milliseconds
	var today = new Date();
	today.setTime( today.getTime() );
	
	/*
	if the expires variable is set, make the correct 
	expires time, the current script below will set 
	it for x number of days, to make it for hours, 
	delete * 24, for minutes, delete * 60 * 24
	*/
	if ( expires )
	{
	expires = expires * 1000 * 60 * 60 * 24;
	}
	var expires_date = new Date( today.getTime() + (expires) );
	
	document.cookie = name + "=" +escape( value ) +
	( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) + 
	( ( path ) ? ";path=" + path : "" ) + 
	( ( domain ) ? ";domain=" + domain : "" ) +
	( ( secure ) ? ";secure" : "" );
}

function setStateLevel(curPageID, navLevel) {
	var curLevel = getCookie('level' + navLevel);
	if (curLevel == curPageID) {
		setNavDisplay(curPageID, navLevel);
	}
}

function setHighlightClass(headerName) {
	if (document.all) {
		document.all(headerName).className = 'selected';
	}
	else {
		document.getElementById(headerName).className = 'selected';
	}
}

function setNavDisplay(headerName, navLevel){
	var divName = 'div_' + headerName;
	
	// toggle navigation elements display between visible and hidden
	if(document.all){
		if (document.all(divName).style.display == 'none') {
			document.all(divName).style.display = '';
			setCookie('level' + navLevel, headerName, '/');
			}
		else {
			document.all(divName).style.display = 'none';
			setCookie('level' + navLevel, '', '/');
			}
	}
	else if(document.getElementById){
		if (document.getElementById(divName).style.display == 'none') {
			document.getElementById(divName).style.display = '';
			setCookie('level' + navLevel, headerName, '/');
			}
		else {
			document.getElementById(divName).style.display = 'none';
			setCookie('level' + navLevel, '', '/');
			}
	}
}

function eatAllLevelCookies(navLevel) {
	for(i=navLevel; i<11; i++){ 
		setCookie('level' + i,'','/');
	}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function clearText(theControl) {
	if (theControl.value == 'Search Site'){
		theControl.value = '';
	}
}

function validateSearchForm(theForm){
	if (theForm.search_text.value == 'Search Site' || theForm.search_text.value == ''){
		alert('Please enter a word or phrase to search for.');
		return false;
	} else {
		return true;
	}
}