function isEmpty(val)
{
	if ((val.length==0) || (val==null))
	{ return true; }
	else
	{ return false; }
}


function isNotEmail(val)
{
	var illegalChars= '/[\(\)\<\>\,\;\:\\\/\"\[\]]/';
	p=val.indexOf('@');
	if (p<1 || p==(val.length-1))
	{ return true; }
	else
	p=val.indexOf('.');
	if (p<1 || p==(val.length-1))
	{ return true; }
	else
	if (val.match(illegalChars))
	{ return true; }
	else
	{ return false; }
}


function isNotNumeric(sText)

{
   var ValidChars = "0123456789.";
   var isNotNumeric=false;
   var Char;

 
   for (i = 0; i < sText.length && isNotNumeric == false; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         isNotNumeric = true;
         }
      }
   return isNotNumeric;
   
   }
function isNotPlainText(sText)

{
   var ValidChars = "qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM@_-0123456789 ";
   var isNotPlainText=false;
   var Char;

 
   for (i = 0; i < sText.length && isNotPlainText == false; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         isNotPlainText = true;
         }
      }
   return isNotPlainText;
   
   }


/////////////

function dofocus(obj,classs)
{
	obj.className = classs;
	obj.select();
}
function doblur(obj,classs)
{
	obj.className = classs;	
}
function dohide(obj)
{
	document.getElementById(obj).className = 'hiddenitem';
}

function doshow(obj)
{
	document.getElementById(obj).className = 'visibleitem';
}