// check if javascript enabled. fired off by form's onload event
function testJS() {
document.getElementById('js').value='js_on';
}

// controls display of tabs in forms. Called by tabs themselves and by form's onLoad event
// parameter rt is the id of the div containing the tab ul, parameter tabnumber is the tab to be turned on
function doTab(rt,tabnumber) {
	// get number of tabs
	nacCont=document.getElementById(rt);
	navRoot = nacCont.getElementsByTagName("ul")[0]; //nacCont.childNodes[0];
	tabNodes = navRoot.getElementsByTagName("li"); //navRoot.childNodes;
	var numberoftabs=tabNodes.length;
	for (i=1;i<=numberoftabs;i++) {  // hide all tabs & reset the class for the look of the tabs
		document.getElementById(rt+i).style.display='none';
	};
	 turnTabsOff(rt);
	document.getElementById(rt+tabnumber).style.display='block'; //show selected tab
	turnTabOn(rt,tabnumber)
}

// turns all tabs off when called
//parameter rt is the id of the div containing the tabs ul
function turnTabsOff(rt) {
	if (document.getElementById) {
		nacCont=document.getElementById(rt);
		navRoot = nacCont.childNodes[0];
		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			nodeLI = node.childNodes[0];
			if (nodeLI.className!="") {nodeLI.className=""};
			nodeSpan=nodeLI.childNodes[0];
			if (nodeSpan.className!="") {nodeSpan.className=""};
		}
	}
}

// turns specified tab on
// parameter rt is the id of the div containing the tabs ul, parameter tabnumber is the tab to be turned on
function turnTabOn(rt,tabnumber) {
	if (document.getElementById) {
		nacCont=document.getElementById(rt);
		navRoot = nacCont.childNodes[0];
		tabNode = navRoot.childNodes[tabnumber-1];
		node = tabNode.childNodes[0];
		if (node.className!="on") {node.className="on"};
		nodeSpan=node.childNodes[0];
		if (nodeSpan.className!="on") {nodeSpan.className="on"};
	}
}

// duo tone headings
function getElementsByClass(node,searchClass,tag) {
    var classElements = new Array();
    var els = node.getElementsByTagName(tag); // use "*" for all elements
    var elsLen = els.length;
    for (i = 0, j = 0; i < elsLen; i++) {
         if ( els[i].className==searchClass ) {
             classElements[j] = els[i];
             j++;
         }
    }
    return classElements;
}    

function showSpans(cls) {
if(document.getElementsByTagName && document.createElement){
    for (var l=1;l<=6;l++){
    var headingArray = getElementsByClass(document,cls,'h'+l);
        for ( var i=0, len=headingArray.length; i<len; ++i ){
             var heading = headingArray[i];
                 var hString = headingArray[i].firstChild.nodeValue;
                 var span = document.createElement('span');
                 heading.appendChild(span);
                 span.innerHTML = hString;
        }
    }
    }
}

// validation
function checkElement(elid, txt)
{
var d = document.forms[0];
	se = document.getElementById(elid);
	se.style.background='white';
	if ( se.value == "" ) {
		errMsg += txt + "\n";
		se.style.background='#fcc'
		if(fel=="") {
			fel=elid;
		}
	}
}

function checkEmailAddr(elid, txt)
{
var d = document.forms[0];
	se = document.getElementById(elid);
	se.style.background='white';
	if ( !(se.value.match(/^[\w-]+(\.[\w-]+)*@([\w-]+\.)+[a-zA-Z]{2,7}$/)) ) {
		errMsg += txt + "\n";
		se.style.background='#fcc'
		if(fel=="") {
			fel=elid;
		}
	}
}

function checkElementCheckbox(elid,txt)
{
	var d = document.forms[0];
	d.pd1.style.background='white';
	d.pd2.style.background='white';
	d.pd3.style.background='white';
	if (!(d.pd1.checked) && !(d.pd2.checked) && !(d.pd3.checked) ) {
		errMsg += txt + "\n";
		d.pd1.style.background='#fcc';
		d.pd2.style.background='#fcc';
		d.pd3.style.background='#fcc';
		fel=elid;
	}
}

function cp() {
	window.open ('changepassword?OpenForm' , 'newWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width=420,height=400');
}

function openWindow(url){
        window.open(url);
}