function showDiv(field)
{
	if (field.value == 4)
	{
		document.getElementById("universityNameTextDiv").style.display = 'block';
	}
	else
	{
		document.getElementById("universityNameTextDiv").style.display = 'none';
	}
}
function getElementByOriginalId(tagName, originalId)
{
	var field = undefined;
	fields = document.getElementsByTagName(tagName);
	for(var i = 0; i < fields.length ; i++)
		{
			if(fields[i].id.match(originalId))
			{
				field = fields[i];
				break;
			}
		}
	return field;
}


/**
 * Validates if the character pressed is digit 
 * @param evt
 * @return
 */     
function isDigitsOnly(evt)
{
   var charCode = (evt.which) ? evt.which : evt.keyCode;
   if (charCode > 31 && (charCode < 48 || charCode > 57))
      return false;

   return true;
}

/**
 * Validates if the character pressed is Arabic character 
 * @param evt
 * @return
 */
function isArabicLetterOnly(evt)
{
   var charCode = (evt.which) ? evt.which : evt.keyCode;
   if (charCode > 31 && (charCode < 1569 || charCode > 1618))
      return false;

   return true;
}


/**
 * Validates if the character pressed is English character 
 * @param evt
 * @return
 */
function isEnglishLetterOnly(evt)
{
   var charCode = (evt.which) ? evt.which : evt.keyCode;
   if (charCode > 31 && (charCode < 65 || charCode > 90) && (charCode < 97 || charCode > 122)) 
      return false;

   return true;
}

/**
 * Validates if the character pressed is digit or double  
 * @param evt
 * @param _element
 * @return
 */     
function isDoubleOnly(evt,_element)
{
   var charCode = (evt.which) ? evt.which : evt.keyCode;
   if(_element.value.indexOf(".") == -1 && charCode == 46)
   	return true;

    if (charCode > 31 && (charCode < 48 || charCode > 57))
	             return false;

   return true;
}