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;
}