var xmlHttp
function showUser()
{ 
		
	if(document.register_frm_page.mobile.value=='')
	{
		alert("Please enter a valid mobile");
		document.register_frm_page.mobile.focus();
		return false;
		
	}
	
	var s1=document.register_frm_page.mobile.value;
	if(s1 != "" && (!/^[1-9][0-9]*$/.test(s1))) {
	  alert("Enter a valid Mobile Number");
	  document.register_frm_page.mobile.focus();
	  return false;
	}
	
	var mobile1 = document.register_frm_page.mobile.value;
     if(mobile1.length<10) {
			alert("Please enter a Mobile with 10 characters");
			document.register_frm_page.mobile.focus();
		return false;
	 }
						 
						 
	var mobile=document.register_frm_page.mobile.value;
	var rand=Math.random();
	//alert (rand);
    var d = rand.toString();

	var subst=d.substring(2,7);
    
	//document.register_frm_page.smscode.value=subst;
	document.register_frm_page.smscodeh.value=subst;
	
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null)
	 {
	 alert ("Browser does not support HTTP Request")
	 return
	 }
	var url="smsvalidate.php"
	url=url+"?q="+mobile
	url=url+"&sid="+subst
	xmlHttp.onreadystatechange=stateChanged 
	xmlHttp.open("GET",url,true)
	xmlHttp.send(null)
}

function stateChanged() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	 { 
	 document.getElementById("txtHint").innerHTML=xmlHttp.responseText 
	 } 
}

function GetXmlHttpObject()
{
	var xmlHttp=null;
	try
	 {
	 // Firefox, Opera 8.0+, Safari
	 xmlHttp=new XMLHttpRequest();
	 }
	catch (e)
	 {
	 //Internet Explorer
	 try
	  {
	  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
	  }
	 catch (e)
	  {
	  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	  }
 }
return xmlHttp;
}