/*<script language="JavaScript">*/
<!--

/***********************************************
* Required field(s) validation v1.10- By NavSurf
* Visit Nav Surf at http://navsurf.com
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

function formCheck(formobj){
	// Enter name of mandatory fields
	var fieldRequired = Array("firstname", "emailaddress");
	// Enter field description to appear in the dialog box
	var fieldDescription = Array("First Name", "Email");
	// dialog message
	var alertMsg = "Please complete the following fields:\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 (formobj.emailaddress.value != "" && !isValidEmail(formobj.emailaddress.value)) {
		alertMsg += "\nPlease enter a valid email address.\n\n";
		}

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

function isValidEmail(str) {
/*   return (str.indexOf("@") > 0) && (str.indexOf(".") > (str.indexOf(@));
*/
	var atPos = str.indexOf("@");
	var atLastPos = str.lastIndexOf("@");
	var stopFirstPos = str.indexOf(".");
	var stopPos = str.lastIndexOf(".");
	
	if (atPos <= 0 || stopPos <= 0 || stopFirstPos ==0 || stopPos == (str.length-1) || atLastPos == (str.length-1)) {
		return false;
	}
	else if (stopPos < atPos) {
		return false;
	}
	else return true;
}

// -->
/*</script>*/