// JavaScript Document
function contact()
{
	if(document.contact_us.first_name.value=="")
		{
			alert("Enter first name");
			document.contact_us.first_name.focus();
			return false;			  
		}
	else if(document.contact_us.last_name.value=="")
		{
			alert("Enter last name");
			document.contact_us.last_name.focus();
			return false;			  
		}
	else if(document.contact_us.email.value=="")
		{
			alert("Enter email ID");
			document.contact_us.email.focus();
			return false;			  
		}
	else if(echeck(document.contact_us.email.value)==false)
		{
			document.contact_us.email.value="";
			document.contact_us.email.focus();
			return false;
		}
  /* 
	if(document.contact_us.company.value=="")
		{
			alert("Enter company name");
			document.contact_us.company.focus();
			return false;			  
		}
   if(document.contact_us.title	.value=="")
		{
			alert("Enter title name");
			document.contact_us.title.focus();
			return false;			  
		}  
	if(document.contact_us.website.value=="")
		{
			alert("Enter website name");
			document.contact_us.website.focus();
			return false;			  
		}
	if(document.contact_us.phone.value=="")
		{
			alert("Enter phone number");
			document.contact_us.phone.focus();
			return false;			  
		}
	if(document.contact_us.city.value=="")
		{
			alert("Enter city name");
			document.contact_us.city.focus();
			return false;			  
		}
	if(document.contact_us.state.value=="")
		{
			alert("Enter state name");
			document.contact_us.state.focus();
			return false;			  
		}
  */
	else if(document.contact_us.message.value=="")
		{
			alert("Enter message");
			document.contact_us.message.focus();
			return false;			  
		}
   else
   {		
		 return true;
   }

}


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 login()
{
	if(document.login_form.email.value=="")
		{
			alert("Enter email ID");
			document.login_form.email.focus();
			return false;			  
   		 }
	if(echeck(document.login_form.email.value)==false)
		{
			document.login_form.email.value="";
			document.login_form.email.focus();
			return false;
		}
	if(document.login_form.invite.value=="")
	   {
		   alert("Enter your invited code");
		   document.login_form.invite.focus();
		   return false;
	   }
		return true
		
}

function invite()
{
	if(document.invites.friends.value=="")
	{
		alert("Enter your friends id");
		document.invites.friends.focus();
		return false;
	}
	else if(document.invites.friends_note.value=="")
	{
		alert("Enter your message");
		document.invites.friends_note.focus();
		return false;
	}
	else if(document.invites.from_email.value=="")
	{
			alert("Enter email ID");
			document.invites.from_email.focus();
			return false;			  
  }
	else if(echeck(document.invites.from_email.value)==false)
	{
			document.invites.from_email.value="";
			document.invites.from_email.focus();
			return false;
	}
	else if(document.invites.from_name.value=="")
	{
		alert("Enter your name");
		document.invites.from_name.focus();
		return false;
	}
  else 
  {
    //document.getElementById('showmessage').style.display='';  
    return true;
  }
  
	//return true;
}


function priority()
{
	if(document.priori.email.value=="")
		{
			alert("Enter email ID");
			document.priori.email.focus();
			return false;			  
   		 }
	if(echeck(document.priori.email.value)==false)
		{
			document.priori.email.value="";
			document.priori.email.focus();
			return false;
		}
	return true;
}