function chk(frm)
{
var err='';
var msg='Please insert required fields to proceed\n\n';
	if(frm.user_email.value=='')
	{
		err+="- Email address cannot be blank.\n";
	}
	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	if(frm.user_email.value!='' && reg.test(frm.user_email.value) == false)
	{
     	err+="- Invalid Email address.\n"; 
    }
	if(frm.user_fname.value=='')
	{
		err+="- First Name cannot be blank.\n";
	}
	if(frm.user_lname.value=='')
	{
		err+="- Last Name cannot be blank.\n";
	}
	if(frm.user_pwd.value=='')
	{
		err+="- Password cannot be blank.\n";
	}
	if(frm.user_retype_pwd.value=='')
	{
		err+="- Confirm Password cannot be blank.\n";
	}
	if(frm.user_retype_pwd.value!='')
	{
		if(frm.user_pwd.value != frm.user_retype_pwd.value)
		{
			err+="- Password did not matched.\n";
		}
	}
	if(frm.user_zip.value=='')
	{
		err+="- Zip Code cannot be blank.\n";
	}
	if(frm.terms.checked==false)
	{
		err+="- Please checked the checkbox for agree with Privacy Agreement.\n";
	}
	if(err!='')
	{
		msg=msg + err;
		alert(msg);
		return false;
	}
	else
	{
		return true;
	}
}
function chk_forgot(frm)
{
var err='';
var msg='Please insert required fields to proceed\n\n';
	if(frm.user_email.value=='')
	{
		err+="- Email address cannot be blank.\n";
	}
	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	if(frm.user_email.value!='' && reg.test(frm.user_email.value) == false)
	{
     	err+="- Invalid Email address.\n"; 
    }
	if(err!='')
	{
		msg=msg + err;
		alert(msg);
		return false;
	}
	else
	{
		return true;
	}
}
function chk_login(frm)
{
var err='';
var msg='Please insert required fields to proceed\n\n';
	if(frm.user_email.value=='')
	{
		err+="- username cannot be blank.\n";
	}
	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	if(frm.user_email.value!='' && reg.test(frm.user_email.value) == false)
	{
     	err+="- Invalid Email address.\n"; 
    }
	if(frm.user_pwd.value=='')
	{
		err+="- password cannot be blank.\n";
	}
	if(err!='')
	{
		msg=msg + err;
		alert(msg);
		return false;
	}
	else
	{
		return true;
	}
}