function ValidateEmail(ctl){
    	var id=ctl;
	var at=id.value.indexOf('@');
	var lastat=id.value.lastIndexOf('@');
	var dot=id.value.indexOf('.');
	lastdot=id.value.lastIndexOf('.')
	if ( !( (0 < at) && (at < (lastdot-1)) && (lastdot < (id.value.length-1)) && (at == lastat) ) ) 
	{
	      // alert("Please Enter Valid Email");
	      return false;   
	}
	return true;
}


function ValidateMail()
{
    var name= document.getElementById("txtName");
    var email= document.getElementById("txtEmailId");
    if(name.value=="")
    {
        alert("Please Enter Name");
        name.focus();
        return false;
    }
    if(email.value=="")
    {
        alert("Please Enter email");
        email.focus();
        return false;
    }
    if(email.value!="")
    {
        if(!ValidateEmail(email))
        {
            alert("Please Enter Valid Email");
            email.value="";
            email.focus();
            return false;
        }
    }
    return true;
    
}

function validateSendMail()
{
    var mailto = document.getElementById("txtMailto");
    var senderemail = document.getElementById("txtSenderEmail");
    if(mailto.value=="")
    {
        alert("Please Enter Email To");
        mailto.focus();
        return false;
    }
    if(mailto.value!="")
    {
        if(!ValidateEmail(mailto))
        {
            alert("Please Enter Valid Email To");
            mailto.value="";
            mailto.focus();
            return false;
        }
    }
    if(senderemail.value=="")
    {
        alert("Please Enter Your Email");
        senderemail.focus();
        return false;
    }
    if(senderemail.value!="")
    {
        if(!ValidateEmail(senderemail))
        {
            alert("Please Enter Valid Your Email");
            senderemail.value="";
            senderemail.focus();
            return false;
        }
    }
    return true;
}