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 emailValid(str) 
{

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)

		if (str.indexOf(at)==-1)
		{
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
		{
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
		{
		    return false
		}

		if (str.indexOf(at,(lat+1))!=-1)
		{
		    return false
		}

		if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
		{
		    return false
		}

		if (str.indexOf(dot,(lat+2))==-1)
		{
		    return false
		}
		
		if (str.indexOf(" ")!=-1)
		{
		    return false
		}

 		return true					
}

// TCH-MOD: use this to force validation checking on the contact us form
function submitContactUs()
{
	var i;
	var status;
	var formObj;
	var errMsg;

	status = true;
	errMsg = "";
	formObj = document.frmContactUs;

	if (formObj != null) 
	{
		if (formObj.email.value != "")
		{
			if (!emailValid(formObj.email.value))
			{
				errMsg = errMsg + "Please enter a valid email address.\n";
				status = false;
			}
		}
		else
		{
			errMsg = errMsg + "Please enter a valid email address.\n";
			status = false;
		}

		if (formObj.who.value == "")
		{
			errMsg = errMsg + "Please enter your name.\n";
			status = false;
		}

		if (formObj.message.value == "")
		{
			errMsg = errMsg + "You need to enter a message.\n";
			status = false;
		}

		if (status == false)
		{
			alert(errMsg);
		}

		return status;
	}
	else 
	{
		alert('The Contact Us Form Mail is currently unavailable, you may send mail directly to contact-us (at) cafehub (dot) net');
	}
}