var name;
var email;
var message;

function setVariables(){
	name = document.contactForm.name;
	email = document.contactForm.email;
	message = document.contactForm.message;
}


function validateForm(){
	setVariables();
	return checkName();
}

function checkName(){
	
	if(name.value == "" || name.value == "Type your name here" || name.value == "This field is required!" ){
		document.getElementById("name").style.color = "#FF6600";
		name.value = "This field is required!"
		return false;
	}else{
		return checkEmail();
	}
}

function checkEmail(){
	
	
	if ((email.value=="")||(email.value=="Type your email here")||(email.value=="This field is required!")){
		document.getElementById("email").style.color = "#FF6600";
		email.value = "This field is required!";
		
		return false;
	}
	if (echeck(email.value)==false){
		document.getElementById("email").style.color = "#FF6600";
		email.value = "Invalid email address!";
		
		return false
	}
	return checkMessage();
 }
 
 
 function checkMessage(){
	
	if(message.value == "" || message.value == "Type your message here" || message.value == "This field is required!" ){
		document.getElementById("message").style.color = "#FF6600";
		document.contactForm.message.value = "This field is required!";
		
		return false;
	}else{
		return true;
	}
 }
 
 
function resetField(fieldName){
	setVariables();
	if(fieldName == "name" && name.value =="Type your name here" || name.value =="This field is required!"){
		document.getElementById("name").style.color = "#000000";
		name.value = "";
	}
	
	if(fieldName == "email" && email.value =="Type your email here" || email.value =="This field is required!"  || email.value =="Invalid email address!"){
		document.getElementById("email").style.color = "#000000";
		email.value = "";
	}
	
	if(fieldName == "message" && message.value =="Type your message here" || message.value =="This field is required!"){
		document.getElementById("message").style.color = "#000000";
		message.value = "";
	}
}

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 ID")
		   return false
		}

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

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

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

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

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

 		 return true					
	}

function clearAll(){
	document.getElementById("name").style.color = "#999999";
	document.getElementById("email").style.color = "#999999";
	document.getElementById("message").style.color = "#999999";
	
	document.contactForm.name.value = "Type your name here";
	document.contactForm.email.value = "Type your email here";
	document.contactForm.company.value = "";
	document.contactForm.phone.value = "";
	document.contactForm.message.value = "Type your message here";
}