//Javascript utilies for Al Braden Photography

var loaded = false;

function setLoaded(){
	loaded=true;
}//end function


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_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_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];}
}

//Start getCaption function. This function is used to dynamiclly replace the caption.
function getCaption(text){
	if(loaded == true){
	//First Clear the default caption
	var theRow = document.getElementById("cRow");
	var theCell = document.getElementById("cCell");
	theRow.removeChild(theCell);
	
	//Add new caption
	var newTD = document.createElement("td");
	var newText = document.createTextNode(text);
	newTD.appendChild(newText);
	newTD.id ="cCell"
	newTD.className ="caption"
	theRow.appendChild(newTD);	
	}
}//ends function


//THESE FUNCTIONS BELOW ARE THE FUNCTIONS FOR CHECKING AND SUBMITTING THE FORMS
//DO NOT REMOVE

function checkForm(){
var form = document.form;
var ck = false;
	if ((form.email.value==null)||(form.email.value=="")){
		alert("Please enter an 'Email Address'")
		form.email.focus()
		return false
	}
	if (echeck(form.email.value)==false){
		form.email.value=""
		form.email.focus()
		return false
	} else {
		ck = true;
	}//ends check
	
	if (ck == true){
	  sendForm();
	}//ends if
}//ends checkForm()

//Start email validation function
function echeck(str) {
		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   alert("Invalid E-mail Address")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail Address")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid E-mail Address")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail Address")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail Address")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail Address")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid E-mail Address")
		    return false
		 }
 		 return true					
	}//ends echeck