function EmailValidation(email_id)

	{

		

		//alert(email_id+"from function");

		str=email_id.value;

		str1=str.substring(0,str.indexOf('@'));

		str2=str.substring(str.indexOf('@')+1,str.length);

		

		alert

		if(email_id.value.indexOf('@') == -1){

			alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

			email_id.select();

			return false;

		}

		if(email_id.value.indexOf('.') == -1){

			alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

			email_id.select();

			return false;

		}

		if((str1.substring(0,1)<"a" || str1.substring(0,1)>"z") && (str1.substring(0,1)<"A" || str1.substring(0,1)>"Z")){

			alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

			email_id.select();

			return false;

		}

		if((email_id.value.indexOf('@')) != (email_id.value.lastIndexOf('@'))){

			alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

			email_id.select();

			return false;

		}

		if((email_id.value.indexOf('@')) > (email_id.value.lastIndexOf('.'))){

			alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

			email_id.select();

			return false;

		}

		if(email_id.value.indexOf('@') == email_id.value.length - 1){

			alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

			email_id.select();

			return false;

		}

		if(email_id.value.indexOf('.') == email_id.value.length - 1){

			alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

			email_id.select();

			return false;

		}

		

		//str1 validation

		if(str1.lastIndexOf('.') == str1.length - 1){

			alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

			email_id.select();

			return false;

		}

		if(str1.lastIndexOf('-') == str1.length - 1){

			alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

			email_id.select();

			return false;

		}

		if(str1.lastIndexOf('_') == str1.length - 1){

			alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

			email_id.select();

			return false;

		}

		for (var i = 1; i < str1.length; i++) {

			var ch = str1.substring(i, i + 1);

			if ( ((ch < "a" || "z" < ch) && (ch < "A" || "Z" < ch)) && (ch < "0" || "9" < ch) && (ch != '_') && (ch != '.') && (ch != '-') ) {

				alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

				email_id.select();

				return false;

			}

		}

		

		//str2 validation

		if(str2.indexOf('.') == 0){

			alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

			email_id.select();

			return false;

		}

		if(str2.indexOf('-') == 0){

			alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

			email_id.select();

			return false;

		}

		if(str2.lastIndexOf('.') == str2.length - 1){

			alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

			email_id.select();

			return false;

		}

		if(str2.lastIndexOf('-') == str2.length - 1){

			alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

			email_id.select();

			return false;

		}

		for (var i = 1; i < str2.length; i++) {

			var ch = str2.substring(i, i + 1);

			if ( ((ch < "a" || "z" < ch) && (ch < "A" || "Z" < ch)) &&  (ch < "0" || "9" < ch) && (ch != '.') && (ch != '-') ) {

				alert("Please Enter Valid Email Address . For e.g. Contact@abc.com");

				email_id.select();

				return false;

			}

		}





				return true;

}