var submitcount=0;
function checkSubmit() {     
      
 if (submitcount == 0)  {
   submitcount++;
   return true;
 }else{
   alert('This form is currently saving your information.' );
   return false;
 } 

}

// Agree to terms
var checkobj;

function agreesubmit(el){
 checkobj=el
 if (document.all||document.getElementById){
  for (i=0;i<checkobj.form.length;i++){  //hunt down submit button
   var tempobj=checkobj.form.elements[i]
    if(tempobj.type.toLowerCase()=="submit"){
     tempobj.disabled=!checkobj.checked
    } 
  }
 }
}

function defaultagree(el){
 if (!document.all&&!document.getElementById){
  if (window.checkobj&&checkobj.checked){
   return true
  }else{
   alert("Please read/accept terms to submit form")
   submitcount=0;
   return false
  }
 }
}

// Check required fields
function formCheck(formobj){

var fieldRequired = Array("fname","lname","email","address","password","verify");
var fieldDescription = Array("First Name","Last Name","Email","Street Address","Password","Agree to Terms");

	// dialog message
	var alertMsg = "Please complete the following fields(s):\n";
	
	var l_Msg = alertMsg.length;
	
	for (var i = 0; i < fieldRequired.length; i++){
		var obj = formobj.elements[fieldRequired[i]];
		if (obj){
			switch(obj.type){
			case "select-one":
				if (obj.selectedIndex == -1 || obj.options[obj.selectedIndex].text == ""){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			case "select-multiple":
				if (obj.selectedIndex == -1){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			case "text":
			case "textarea":
				if (obj.value == "" || obj.value == null){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			default:
			}
			if (obj.type == undefined){
				var blnchecked = false;
				for (var j = 0; j < obj.length; j++){
					if (obj[j].checked){
						blnchecked = true;
					}
				}
				if (!blnchecked){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
			}
		}
	}

	if (alertMsg.length == l_Msg){
		return true;
	}else{
	  submitcount=0;
		alert(alertMsg);
		return false;
	}
}

// alphanumeric only (for password field)
function letternumber(e) {

var key;
var keychar;

if (window.event) {
   key = window.event.keyCode;
}else if (e) {
   key = e.which;
}else{
   return true;
}

keychar = String.fromCharCode(key);
keychar = keychar.toLowerCase();

// control keys
  if ( (key==null) || (key==0) || (key==8) || (key==9) || (key==13) || (key==27) ) {
    return true;
  }else if ( (("abcdefghijklmnopqrstuvwxyz0123456789").indexOf(keychar) > -1) ) {
    return true;
  }else{
    return false;
  }
}