function formcheck3()
        {
		  uemail3 = document.getElementById('txtCustomerId').value;
		  if(uemail3=='')


          {


				alert('Please enter your email id');


				document.getElementById('txtCustomerId').focus();


				return false;


		  

		  }
		  else{


          res3 = emailvalidator3(uemail3,'txtCustomerId');


           if(res3==false)


           return false;


          }

function emailvalidator3(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")


		   document.getElementById('txtCustomerId').focus();


		   return false


		}





		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){


		   alert("Invalid E-mail ID")


		   document.getElementById('txtCustomerId').focus();


		   return false


		}





		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){


		    alert("Invalid E-mail ID")


			document.getElementById('txtCustomerId').focus();


		    return false


		}





		 if (str.indexOf(at,(lat+1))!=-1){


		    alert("Invalid E-mail ID")


			document.getElementById('txtCustomerId').focus();


		    return false


		 }





		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){


		    alert("Invalid E-mail ID")


			document.getElementById('txtCustomerId').focus();


		    return false


		 }





		 if (str.indexOf(dot,(lat+2))==-1){


		    alert("Invalid E-mail ID")


			document.getElementById('txtCustomerId').focus();


		    return false


		 }


		


		 if (str.indexOf(" ")!=-1){


		    alert("Invalid E-mail ID")


			document.getElementById('txtCustomerId').focus();


		    return false


		 }


		 document.getElementById('txtCustomerId').focus();





 		 return true					


	}





function ValidateForm3(){


	var emailID=document.frmSample.txtEmail


	


	if ((emailID.value==null)||(emailID.value=="")){


		alert("Please Enter your Email ID")


		emailID.focus()


		return false


	}


	if (echeck(emailID.value)==false){


		emailID.value=""


		emailID.focus()


		return false


	}


	return true


}



		}