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

	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(" \t\n\r");

	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 isEmail(string) {
	if (string.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1){
		return true;
	}else{
		return false;
	}
}

function numeric_dot(string) {
	if (string.search(/^[0-9\.]*$/) != -1){
		return true;
	}else{
		return false;
	}
}

function numeric(string) {
	if (string.search(/^[0-9]*$/) != -1){
		return true;
	}else{
		return false;
	}
}

function blurText(text){
	if(trim(text.value) == ''){
		text.value = text.defaultValue;
	}
}

function focusText(text){
	if(text.value == text.defaultValue){
		text.value='';
	}
}

function clear_textbox()
{
if (document.searchadviser.searchstring.value == "search our site...")
document.searchadviser.searchstring.value = "";
}