function IsAlphabetORDigit(sText) {
//alert(sText);
var sValidCharacters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_', ";
var flg=false;

for(i=0; i<sText.length; i++) {
cTemp = sText.charAt(i);
if(sValidCharacters.indexOf(cTemp)==-1) {
alert('Enter valid Search [Only letters and/or numbers allowed]');
document.form1.searchtext.value = "";
document.form1.searchtext.focus();
return false;
}
}
return true;
}


function validentry(){
 var searchvalue = document.form1.searchtext.value;
 if(Trim(searchvalue)==""){
		alert("Please enter search value");	
		document.form1.searchtext.focus();
		return false;
	}
 else
	return true;

}


function validentrySearch(){
   var searchvalue = document.form2.searchtext.value;
   if(Trim(searchvalue)==""){
		alert("Please enter search value");	
		document.form2.searchtext.focus();
		return false;
	}
	else
	return true;
}


function LTrim(str)
/*
   PURPOSE: Remove leading blanks from our string.
   IN: str - the string we want to LTrim
*/
{
   var whitespace = new String(" tnr");

   var s = new String(str);

   if (whitespace.indexOf(s.charAt(0)) != -1) {
      // We have a string with leading blank(s)...

      var j=0, i = s.length;

      // Iterate from the far left of string until we
      // don't have any more whitespace...
      while (j < i && whitespace.indexOf(s.charAt(j)) != -1)
         j++;

      // Get the substring from the first non-whitespace
      // character to the end of the string...
      s = s.substring(j, i);
   }
   return s;
}

/*
==================================================================
RTrim(string) : Returns a copy of a string without trailing spaces.
==================================================================
*/
function RTrim(str)
/*
   PURPOSE: Remove trailing blanks from our string.
   IN: str - the string we want to RTrim

*/
{
   // We don't want to trip JUST spaces, but also tabs,
   // line feeds, etc.  Add anything else you want to
   // "trim" here in Whitespace
   var whitespace = new String(" tnr");

   var s = new String(str);

   if (whitespace.indexOf(s.charAt(s.length-1)) != -1) {
      // We have a string with trailing blank(s)...

      var i = s.length - 1;       // Get length of string

      // Iterate from the far right of string until we
      // don't have any more whitespace...
      while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1)
         i--;


      // Get the substring from the front of the string to
      // where the last non-whitespace character is...
      s = s.substring(0, i+1);
   }

   return s;
}

/*
=============================================================
Trim(string) : Returns a copy of a string without leading or trailing spaces
=============================================================
*/
function Trim(str)
/*
   PURPOSE: Remove trailing and leading blanks from our string.
   IN: str - the string we want to Trim

   RETVAL: A Trimmed string!
*/
{
   return RTrim(LTrim(str));
}

	function enablecheck()
	{
		//alert(document.getElementById('username').value);
		if(document.getElementById('username').value != "")
			document.getElementById('availity').disabled = "";
		else
			document.getElementById('availity').disabled = "disabled";
	}
	
	function changeVal() {
  
   document.form1.searchtext.value = '';
}