function chkfrm(frm) 
{
		var str=frm.email.value;
		//alert(str);
		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		
		if(trim(frm.full_name.value)=='')
		{
			alert('Please Enter Your Name');
			frm.full_name.focus();
			return false;
		}
		
		if(trim(frm.address.value)=='')
		{
			alert('Please Enter Your Address');
			frm.address.focus();
			return false;
		}
		
		if (str.indexOf(at)==-1){
		   alert("Invalid E-mail")
		   return false
		}
		

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid E-mail")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid E-mail")
		    return false
		 }
		
		if(trim(frm.fb_det.value)=='')
		{
			alert('Please Enter the comments');
			frm.fb_det.focus();
			return false;
		}
 		 return true					
	}
function trim(str)
{
  	return str.replace(/^\s+|\s+$/g,'');
}
function verify_user_from(frm)
{
		if(trim(frm.u_name.value)=='')
		{
			alert('Please enter the user name');
			frm.u_name.focus();
			return false;
		}
		if(trim(frm.u_pass.value)=='')
		{
			alert('Please enter the Password');
			frm.u_pass.focus();
			return false;
		}
}
function chkQuesFrm(frm) 
{
	if(trim(frm.ques_det.value)=='')
	{
		alert('Please Enter Your Question');
		frm.full_name.focus();
		return false;
	}
	if(trim(frm.fb_reply.value)=='')
	{
		alert('Please Enter Your Answer');
		frm.address.focus();
		return false;
	}
	return true;				
}

function chkAnsForm(frm)
{
	if(trim(frm.fb_reply.value)=='')
	{
		alert('Please Enter Your Answer');
		return false;
	}
	return true;
}