function CheckInfo()
{
      if (document.getElementById("UserName").value=='' )
	  {
		  alert("Enter Username");
		  document.getElementById("UserName").focus();
		  return false;
	  };
	  if (document.getElementById("Password").value=='' )
	  {
		  alert("Enter Password");
		   document.getElementById("Password").focus();
		  return false;
	  };
  	  if (document.getElementById("Password").value !=document.getElementById("Repassword").value)
	  {
		  alert("Re-entered Password");
		  document.getElementById("Repassword").focus();
		  return false;
	  };
	  if (document.getElementById("Name").value=='' )
	  {
		  alert("Enter Full Name");
		  document.getElementById("Name").focus();
		  return false;
	  };
	  if (document.getElementById("email").value=='' )
	  {
		  alert("Enter E-mail Id");
		  document.getElementById("email").focus();
		  return false;
	  };
	  
    	str=document.getElementById("email").value
		var at="@";
		var dot=".";
		var lat=str.indexOf(at);
		var lstr=str.length;
		var ldot=str.indexOf(dot);
		if (str.indexOf(at)==-1){
			alert("Invalid E-mail Id");
		   return false;
		};

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

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

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

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

		 if (str.indexOf(dot,(lat+2))==-1){
		 alert("Invalid E-mail Id");
		    return false;
		 };
		
		 if (str.indexOf(" ")!=-1){
		 alert("Invalid E-mail Id");
		    return false;
		 };
  	  if (document.getElementById("Address").value=='' )
	  {
		  alert("Enter Address");
		  document.getElementById("Address").focus();
		  return false;
	  };
	   if (document.getElementById("SerialNo").value=='' )
	  {
		  alert("Enter Serial Number");
		  document.getElementById("SerialNo").focus();
		  return false;
	  };
	  if (document.getElementById("CouponNo").value=='' )
	  {
		  alert("Enter Coupan Number");
		  document.getElementById("CouponNo").focus();
		  return false;
	  };
	  	 if (IsNumeric(document.getElementById("SerialNo").value)==false )
	  {
		  alert("Serial Number Should be Numeric");
		  document.getElementById("SerialNo").focus();
		  return false;
	  };
	  if (IsNumeric(document.getElementById("CouponNo").value)==false )
	  {
		  alert("Coupan Number Should be Numeric");
		  document.getElementById("CouponNo").focus();
		  return false;
	  };
	  
return true;	
}
function IsNumeric(sText)
{
   var ValidChars = "0123456789";
   var IsNumber=true;
   var Char;
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
   
}