// JavaScript Document for Frontier Heating and Cooling. //
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 checkcontactForm(){
	//try{
	doc = document.contactForm;
	subj = doc.subject;
	msg = doc.message;
	fnm = doc.fname;
	lnm = doc.lname;
	em = doc.email;				
	errMess = "";
	
	objArry = new Array(subj, msg, fnm, lnm, em);
	objErrMess = new Array("-Please choose a department", "-Please enter a message", "-Please enter your first name", "-Please enter your last name", "-Please enter your E-mail address");
	
	for(x=0; x <= objArry.length - 1; x++)
	{
		if(objArry[x].value == "")
		{
			errMess = errorMessage(errMess, objErrMess[x]);
		}
	}

	if(errMess != ""){
		alert(errMess);
		return false;
	}
								
	return true;
}

function errorMessage(theErr, str_Message){
	if(theErr == ""){
		theErr = str_Message;
	}
	else{
		theErr = theErr + "\n" + str_Message
	}

		return theErr;
}