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)

	{

		msg+="- Please enter a valid email id\n";

	   return false

	}



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

			msg+="- Please enter a valid email id\n";

	   return false

	}



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

			msg+="- Please enter a valid email id\n";

		return false

	}



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

			msg+="- Please enter a valid email id\n";

		return false

	 }



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

			msg+="- Please enter a valid email id\n";

		return false

	 }



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

			msg+="- Please enter a valid email id\n";

		return false

	 }

	

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

				msg+="- Please enter a valid email id\n";

		return false

	 }



	 return true;					

}

function isemail(Input) 

{

	var numbers="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_@.-";

	var CharacterCheck;

	var counter = 0; 



	for (var i=0; i < Input.length; i++){

		CharacterCheck = Input.substring(i, i+1); 

		if (numbers.indexOf(CharacterCheck) != -1){

			counter ++;

		}

	}

	if (counter != Input.length){

		return true;

	}

	return false;

} 

function fnEmailCheck(str) {
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
	if (!filter.test(str)){
		msg+="-  Please enter a valid email id\n";
		return false;
	}
	return true;
}