/***********************************************
* 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("field_1", "field_2", "field_3");
	// Enter field description to appear in the dialog box
	var fieldDescription = Array("Name", "Email", "Message");
	// dialog message
	var alertMsg = "Please complete the following fields:\n\n";
	
	var l_Msg = alertMsg.length;
	var strEmail=''
	
	for (var i = 0; i < fieldRequired.length; i++){
		var obj = formobj.elements[fieldRequired[i]];

		if (obj){
			switch(obj.type){
			case "text":
				if (obj.name == "field_2") 
				{
					if (obj != "") 
					{
						emailCheck(obj);
					}
				}
				
				if (obj.name == "field_5")
				{
					if (obj.value.length != 14)
					{
						obj.value = "";
					}
				}
			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{
		alert(alertMsg);
		return false;
	}
}

function emailCheck(objEmail) 
{
	var str = objEmail.value; // email string
	var reg1 = /(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)/; // not valid
	var reg2 = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/; // valid
	//if syntax is valid
	if (!reg1.test(str) && reg2.test(str)) 
	{
	    return true;
	}
	objEmail.value = "";
	return false;
}