function ajax_deregister(membershipNo_dereg, Email_dereg)
{
	//alert(fname);
	//alert(membershipNo+"-"+eVoucherNo+"-"+transfereeEmail);
var xmlHttp;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    try
      {
      xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
      }
    catch (e)
      {
      alert("Your browser does not support AJAX!");
      return false;
      }
    }
  }
  xmlHttp.onreadystatechange=function()
    {
    if(xmlHttp.readyState==4)
      {
      	//document.myForm.time.value=xmlHttp.responseText;
				//alert(xmlHttp.responseText);
				document.frmDeRegister.membershipNo_dereg.value = "";
				document.frmDeRegister.Email_dereg.value = "";
        document.getElementById('myspans_dereg').innerHTML = xmlHttp.responseText;
				//document.frmNewMember.myspans.innerHTML = xmlHttp.responseText;
      }
    }
	var url="ns_w_ajax.php";
	url=url+"?membershipNo_dereg="+membershipNo_dereg;
	url=url+"&Email_dereg="+Email_dereg;
	//alert(url);
  xmlHttp.open("GET", url, true);
  xmlHttp.send(null);
  }

///////////////////// EMAIL VALIDATION
function email_deragister(emailID)
{

if ((emailID==null)||(emailID=="")){
			document.getElementById("myInput_dereg_1").innerHTML="<font color='#ff0000'><b>- Please enter valid email-id</font></b>";  
			//emailID.focus();
 		 return false;
	}
	
if (echeck_deragister(emailID)==false){
		return false;
	}
}

function echeck_deragister(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length	
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   document.getElementById("myInput_dereg_1").innerHTML="<font color='#ff0000'><b>- Invalid E-mail ID</font></b>";
			 return false;
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   document.getElementById("myInput_dereg_1").innerHTML="<font color='#ff0000'><b>- Invalid E-mail ID</font></b>";
		   return false;
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    document.getElementById("myInput_dereg_1").innerHTML="<font color='#ff0000'><b>- Invalid E-mail ID</font></b>";
		    return false;
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    document.getElementById("myInput_dereg_1").innerHTML="<font color='#ff0000'><b>- Invalid E-mail ID</font></b>";
		    return false;
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    document.getElementById("myInput_dereg_1").innerHTML="<font color='#ff0000'><b>- Invalid E-mail ID</font></b>";
		    return false;
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    document.getElementById("myInput_dereg_1").innerHTML="<font color='#ff0000'><b>- Invalid E-mail ID</font></b>";
		    return false;
		 }
		
		 if (str.indexOf(" ")!=-1){
		    document.getElementById("myInput_dereg_1").innerHTML="<font color='#ff0000'><b>- Invalid E-mail ID</font></b>";
		    return false;
		 }
	}


function echeck_deregister(str) 
{
		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		//trace(lat)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   return false
		}

		if (str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return false
		}

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

		 if (str.indexOf(at,(lat+1))!=-1){
		    return false
		 }
			
		 if (str.indexOf(" ")!=-1){
		    return false
		 }
		if(lstr==ldot+1)
	    return false
 		 return true					
	}