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 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 emailPage()
{
	location.href='/compressors/email.htm';
}

function toggleLayer( whichLayer )
{
  var elem, vis;
  if( document.getElementById ) // this is the way the standards work
    elem = document.getElementById( whichLayer );
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichLayer];
  else if( document.layers ) // this is the way nn4 works
    elem = document.layers[whichLayer];
  vis = elem.style;
	// if the style.display value is blank we try to figure it out here
	//MM_swapImage(whichLayer+'Img','','/global/images/but_closed.gif',1);
  if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined) //{
	//MM_swapImage(whichLayer+'Img','','/global/images/but_opened.gif',1);
    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none'; 
	//}
  vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}

function checkEmail(myForm) {
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(myForm.email.value)){
	return (true)
	}
	myForm.email.focus();
	alert("Please enter a valid return e-mail address to proceed.")
	return (false)
}

function _body_onload()
{
	loff();
	
	
}

function _body_onunload()
{
	lon();
	
}


function lon(target)
{
	try {
		if (undefined == target)
			target = this;

		if (undefined == target._lon_disabled_arr)
			target._lon_disabled_arr = new Array();
		else if (target._lon_disabled_arr.length > 0)
			return true;

		target.document.getElementById("loaderContainer").style.display = "";
		var select_arr = target.document.getElementsByTagName("select");

		for (var i = 0; i < select_arr.length; i++) {
			select_arr[i].disabled = true;
			_lon_disabled_arr.pop(select_arr[i]);
			var clone = target.document.createElement("input");
			clone.type = "hidden";
			clone.name = select_arr[i].name;
			var values = new Array();
			for (var n = 0; n < select_arr[i].length; n++) {
				if (select_arr[i][n].selected) {
					values[values.length] = select_arr[i][n].value;
				}
			}
			clone.value = values.join(",");
			select_arr[i].parentNode.insertBefore(clone, select_arr[i]);
		}
	} catch (e) {
		return false;
	}
	return true;
}

function loff(target)
{
	try {
		if (undefined == target)
			target = this;

		target.document.getElementById("loaderContainer").style.display = "none";
		if (undefined == target._lon_disabled_arr)
			return true;

		for (;_lon_disabled_arr.legth > 0;) {
			var select = _lon_disabled_arr.push();
			select.disabled = false;

			var clones_arr = target.document.getElementsByName(select.name);
			for (var n = 0; n < clones_arr.length; n++) {
				if ("hidden" == clones_arr[n].type)
					clones_arr[n].parent.removeChild(clones_arr[n]);
			}
		}
	} catch (e) {
		return false;
	}
	return true;
}

function lsubmit(f)
{
	lon();
	try {
		f.submit(f);
	} catch (e) {
		return false;
	}
	return true;
}

function errorfield(o, status)
{
	var tr = getParentNodeByName(o, 'TR');
	if (!tr)
		return false;
	tr.className = status ? 'error' : '';
	return true;
}


function showMs(textstring) {
alert (textstring) 
}