// JavaScript Document
function LTrim( value ) {
	
	var re = /\s*((\S+\s*)*)/;
	return value.replace(re, "$1");
	
}
function validate()
{
	
	if(LTrim(document.getElementById('srchkey').value)=='')
	{
	 alert('Search box should not leave blank.');
     document.getElementById('srchkey').focus();
	 return false;
	}
  
  var iChars = "'";
  for (var i = 0; i<document.getElementById('srchkey').value.length; i++) 
  {
	if (iChars.indexOf(document.getElementById('srchkey').value.charAt(i)) != -1) 
	{
		alert ("Please enter a valid search string.");
		document.getElementById('srchkey').focus();
		return false;
  	}
  }

	
	if(document.getElementById('searchby')[document.getElementById('searchby').selectedIndex].value== "")
    {
	   alert("select a category to search");
	   document.getElementById('searchby').focus(); 
	   return false;
    }
	if(document.getElementById('txtsearch_user').value.search(/\S/)==-1)
	{
	 alert('Search box should not leave blank.');
     document.getElementById('txtsearch_user').focus();
	 return false;
	}
     
   if(document.getElementById('select_usertype')[document.getElementById('select_usertype').selectedIndex].value== "")
    {
	   alert("select a type to search");
	   document.getElementById('select_usertype').focus(); 
	   return false;
    }
	
	 /*if(document.getElementById('searchby')[document.getElementById('searchby').selectedIndex].value== "email")
    {
	   
	var regEmail = /^([-a-zA-Z0-9._]+@[-a-zA-Z0-9.]+(\.[-a-zA-Z0-9]+)+)$/;
	 if(!regEmail.test(document.getElementById('srchkey').value))
	    {
		alert("Invalid email address.");
		document.searchtxt.focus();
	 	return false;
        }
    }*/
	else
	   return true; 
}

/*function validatestr(id)
{
 if(id=='email')
   {
    alert(id);
	 var regEmail = /^([-a-zA-Z0-9._]+@[-a-zA-Z0-9.]+(\.[-a-zA-Z0-9]+)+)$/;
	 var searchtxt=document.getElementById('srchkey').value;
	 alert(searchtxt);
	if(!regEmail.test(document.searchtxt.value))
	 {
		alert("Invalid email address.");
		document.searchtxt.focus();
		return false;
	}
   }
	return true;
}

*/
/*function validatestr(id)
{
   if(id=='email')
   {
     alert(id);
	 var regEmail = /^([-a-zA-Z0-9._]+@[-a-zA-Z0-9.]+(\.[-a-zA-Z0-9]+)+)$/;
	 var searchtxt=document.getElementById('srchkey').value;
	 alert(searchtxt);
	if(!regEmail.test(document.searchtxt.value))
	 {
		alert("Invalid email address.");
		document.searchtxt.focus();
		return false;
	}
	else
	 validate();
   }
  
}*/