// JavaScript Document

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;
		 }

 					
	}

function ValidateForm(){
	var emailID=document.contact.email1;
	
	if (echeck(emailID.value)==false){
			emailID.focus();
		return false;
	}

 }
 
 
 
 
function null_check()
{

   if(document.contact.name.value=='')
	{
		alert('Please Insert name');
		document.contact.name.focus();
		return false;
	}
	
	/*if(document.contact.company.value=='')
	{
		alert('Please Insert Company name');
		document.contact.company.focus();
		return false;
	}*/
	
if(document.contact.email1.value=='')
	{
		alert('Please Insert email address');
		document.contact.email1.focus();
		return false;
	}

if(document.contact.txtPhone.value=='')
	{
		alert('Please Insert phone number');
		document.contact.txtPhone.focus();
		return false;
	}


	if(document.contact.enquery.value=='')
	{
		alert('Please Insert Your Enquery');
		document.contact.enquery.focus();
		return false;
	}
	
	

	/*if(document.contact.no_passenger.value=='')
	{
		alert('Please Insert no of passengers');
		document.contact.no_passenger.focus();
		return false;
	}*/

	
	 return ValidateForm();
	 return true;
}