// JavaScript Document
// Function called in E-Mail Field 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 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					
	}



// Validating The Form

function ValidateForm(){
	var emailID=document.contact.Email
	var Name=document.contact.Name
	var Feedback=document.contact.Feedback


//Name Field Validation

	if((Name.value==null)||(Name.value=="")){
	alert("Enter Your Name");
	Name.focus();
	return false;
	}
	

//E-mail Field Validation
	if ((emailID.value==null)||(emailID.value=="")){
		alert("Enter your Email ID")
		emailID.focus()
		return false
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
	
	
//Current Location Field validation

	if(document.contact.mydropdown.selectedIndex==0)
	{
		alert("Select Your Service.");
		document.contact.mydropdown.focus();
		return false;
	}

	if((Feedback.value==null)||(Feedback.value=="")){
	alert("Type Your Feedback");
	Feedback.focus();
	return false;
	}

}