function Trim(TRIM_VALUE)
{
	if(TRIM_VALUE.length < 1)
	{
		return"";
	}
	TRIM_VALUE = RTrim(TRIM_VALUE);
	TRIM_VALUE = LTrim(TRIM_VALUE);
	if(TRIM_VALUE=="")
	{
		return "";
	} else {
		return TRIM_VALUE;
	}
}

function RTrim(VALUE)
{
	var w_space = String.fromCharCode(32);
	var w_tab = String.fromCharCode(9);
	var w_nl = String.fromCharCode(10);
	var w_cr = String.fromCharCode(13);
	
	var v_length = VALUE.length;
	var strTemp = "";
	if(v_length < 0)
	{
		return"";
	}
	var iTemp = v_length -1;
	while(iTemp > -1)
	{
		if ( VALUE.charAt(iTemp) == w_space || VALUE.charAt(iTemp) == w_tab || VALUE.charAt(iTemp) == w_nl || VALUE.charAt(iTemp) == w_cr )
		{
		} else {
			strTemp = VALUE.substring(0,iTemp +1);
			break;
		}
		iTemp = iTemp-1;
	} //End While
	return strTemp;
} //End Function

function LTrim(VALUE)
{
	var w_space = String.fromCharCode(32);
	var w_tab = String.fromCharCode(9);
	var w_nl = String.fromCharCode(10);
	var w_cr = String.fromCharCode(13);
	if(v_length < 1)
	{
		return"";
	}
	var v_length = VALUE.length;
	var strTemp = "";

	var iTemp = 0;

	while(iTemp < v_length)
	{
		if ( VALUE.charAt(iTemp) == w_space || VALUE.charAt(iTemp) == w_tab || VALUE.charAt(iTemp) == w_nl || VALUE.charAt(iTemp) == w_cr )
		{
		} else {
			strTemp = VALUE.substring(iTemp,v_length);
			break;
		}
		iTemp = iTemp + 1;
	} //End While
	return strTemp;
}
function validateEmail(str) 
{
	str = Trim(str);
	var at="@";
	var dot=".";
	var space = " ";
	var lat=str.indexOf(at);
	var lstr=str.length;
	var ldot=str.indexOf(dot);
	if (str.indexOf(space) != -1)
	{
		return false;
	}
	if (str.indexOf(at)==-1)
	{
		return false;
	}
	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
	{
		return false;
	}
	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
	{
		return false;
	}
	if (str.indexOf(at,(lat+1))!=-1)
	{
		return false;
	}
	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
	{
		return false;
	}
	if (str.indexOf(dot,(lat+2))==-1)
	{
		return false;
	}
	if (str.indexOf(" ")!=-1)
	{
		return false;
	}
	return true					
}