/*START :: code for blog comment*/

function blog()

{

var bl = document.getElementById("comment").value;

if(bl.length == 0)

{

document.getElementById("com_div").style.visibility = 'visible';

var ret = false;

}

else

{

document.getElementById("com_div").style.visibility = 'hidden';

var ret = true;

}

return ret;

}



/*END :: code for blog comment*/

/*START :: code for faq*/

function faq_entered()

{

var bl = document.getElementById("faq").value;

if(bl.length == 0)

{

document.getElementById("faq_div").style.visibility = 'visible';

var ret = false;

}

else

{

document.getElementById("faq_div").style.visibility = 'hidden';

var ret = true;

}

return ret;

}



/*END :: code for faq*/





/*START :: code for feedback*/

function feedback()

{

	if(check_dropdownfields("name","name_div"))

		var	n = true;

	else

	   var n = false;

		   

	if(checkmail("email","email_div"))

		var	em = true;

	else

	   var em = false;

	   

	if(check_fields("heading","heading_div"))

		var	h = true;

	else

	   var h = false;

	   

	if(check_dropdownfields("adminLevel","adminLevel_div"))

		var	level = true;

	else

	   var level = false;

	   

	if(check_dropdownfields("issue","issue_div"))

		var	iss = true;

	else

	   var iss = false;

	   

   if((n == true) && (em == true) && (h == true) && (level == true) && (iss == true))

   		return true;

   else

		return false;	

}

/*END :: code for feedback*/

/*START::code for contact*/

function contact()

{

	if(check_dropdownfields("name","name_div"))

		var	n = true;

	else

	   var n = false;

		   

	if(checkmail("email","email_div"))

		var	em = true;

	else

	   var em = false;

	   

	if(check_fields("subject","subject_div"))

		var	h = true;

	else

	   var h = false;

	 

	if(check_dropdownfields("message","message_div"))

		var	iss = true;

	else

	   var iss = false;

	   

   if((n == true) && (em == true) && (h == true) && (iss == true))

   		return true;

   else

		return false;	

}

/*END :: code for contact*/

/* function check_image(field_id,span_name) */

function check_image(field_id)

{

	if (document.getElementById(field_id).value.length != 0)

	{

		var ext = document.getElementById(field_id).value;

		ext = ext.substring(ext.length-3,ext.length);

 		ext = ext.toLowerCase();

		if((ext != 'jpg') && (ext != 'gif') && (ext != 'png') )

		 {

/**

 * 			document.getElementById(span_name).style.visibility = 'visible';

			document.getElementById(span_name).style.position = 'static';

 */

			return false;

   		 }

 		 else

		 {

/**

 * 				document.getElementById(span_name).style.visibility = 'hidden';

				document.getElementById(span_name).style.position = 'absolute';

				document.getElementById('photo_ext').value = ext;

 */

				return true;	

		 }

	}

	else

	{

/**

 * 		document.getElementById(span_name).style.visibility = 'visible';

		document.getElementById(span_name).style.position = 'static';



		return false;

		 */

		return true;

	}

}





function check_fields(field_id,span_name)

{	

	if (document.getElementById(field_id).value.length != 0)

	  {

		document.getElementById(span_name).style.visibility = 'hidden';

		document.getElementById(span_name).style.position = 'absolute';	

		return true;

	  }

	  else

	  {

		document.getElementById(span_name).style.visibility = 'visible';

		document.getElementById(span_name).style.position = 'static';

		return false;

	  }

}





function check_dropdownfields(field_id,span_name)

{

  if (document.getElementById(field_id).value != 0)

  {

	document.getElementById(span_name).style.visibility = 'hidden';

	document.getElementById(span_name).style.position = 'absolute';

	return true;

  }

  else

  {

	document.getElementById(span_name).style.visibility = 'visible';

	document.getElementById(span_name).style.position = 'static';

	return false;

  }

}



/* Added 2nd March 08 - samir */

function checkmail(email_field)  

{  

	var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i  

	var returnval=emailfilter.test(document.getElementById(email_field).value)  

	if (returnval==false)  

	{  

		document.getElementById(email_field+"_div").style.visibility = 'visible';  

		document.getElementById(email_field+"_div").style.position = 'static';  

		return false;  

	}  

	else

	{

		document.getElementById(email_field+"_div").style.visibility = 'hidden';  

		document.getElementById(email_field+"_div").style.position = 'absolute';  

		return true;  

	}

} 



function check_mail(email_field,span_name)  

{  

	var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i  

	var returnval=emailfilter.test(document.getElementById(email_field).value)  

	

	if (returnval==false)  

	{  

		document.getElementById(span_name).style.visibility = 'visible';  

		document.getElementById(span_name).style.position = 'static';  

		return false;  

	}  

	else

	{

		document.getElementById(span_name).style.visibility = 'hidden';  

		document.getElementById(span_name).style.position = 'absolute';  

		return true;  

	}

} 





function isNan(field_id,span_name)

{	

	  if (!isNaN(document.getElementById(field_id).value))

	  {

		document.getElementById(span_name).style.visibility = 'hidden';

		document.getElementById(span_name).style.position = 'absolute';	

		return true;

	  }

	  else

	  {

		document.getElementById(span_name).style.visibility = 'visible';

		document.getElementById(span_name).style.position = 'static';

		return false;

	  }

}