function valid_required(field)
{
	if(field=="") 
	{
	return false;
	}

	return true;
}



function EmailValid(email) {

		var at="@"
		var dot="."
		var lat=email.indexOf(at)
		var lstr=email.length
		var ldot=email.indexOf(dot)
		if (email.indexOf(at)==-1){
		   alert("Invalid E-mail ID")
		   return false
		}

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

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

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

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

		 if (email.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail ID")
		    return false
		 }
		
		 if (email.indexOf(" ")!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

 		 return true					
	}






function valid_date(txtdate)
{
	if(txtdate=="")
	{
	alert("Date is required !!!")
	return false;
	}
	
	

	var valid = "0123456789/";
	var slashcount = 0;

	if (txtdate.length!=10) 
	{
	alert("Invalid date! The correct date format is like '01/01/2009'.   Please try again.")
	return false;
	}
		for (var i=0; i < txtdate.length; i++)
		 {
		temp = "" + txtdate.substring(i, i+1);
		if (temp == "/") 
		slashcount++;
			if (valid.indexOf(temp) == "-1") 
			{
			alert("Invalid characters in your date.  Please try again.")
			return false;
			}
		if (slashcount > 2) 
		{
		alert("Invalid Date!  The slash character should be used with a properly formatted 8 digits like  '01/01/2009'.   Please try again.")
		return false;
  		 }
		if((txtdate.charAt(2)!= '/')||(txtdate.charAt(5) != '/'))
		{
		alert("Invalid date! The slash character should be used with a properly formatted 8 digits like  '01/01/2009'.   Please try again.")
		return false;
		}
	}
	return true
}


function valid_date(enddate)
{
	if(enddate=="")
	{
	alert("Date is required !!!")
	return false;
	}
	
	

	var valid = "0123456789/";
	var slashcount = 0;

	if (enddate.length!=10) 
	{
	alert("Invalid date! The correct date format is like '01/01/2009'.   Please try again.")
	return false;
	}
		for (var i=0; i < enddate.length; i++)
		 {
		temp = "" + enddate.substring(i, i+1);
		if (temp == "/") 
		slashcount++;
			if (valid.indexOf(temp) == "-1") 
			{
			alert("Invalid characters in your date.  Please try again.")
			return false;
			}
		if (slashcount > 2) 
		{
		alert("Invalid Date!  The slash character should be used with a properly formatted 8 digits like  '01/01/2009'.   Please try again.")
		return false;
  		 }
		if((enddate.charAt(2)!= '/')||(enddate.charAt(5) != '/'))
		{
		alert("Invalid date! The slash character should be used with a properly formatted 8 digits like  '01/01/2009'.   Please try again.")
		return false;
		}
	}
	return true
}