function ValidateLogin()
{
	element = document.getElementById('txtUser');
	
	if (Trim(element.value) == "")	
	{
		alert('Please enter your User');
		element.focus();
		return false;
	}
	element = document.getElementById('txtPassword');
	if (Trim(element.value) == "")	
	{
		alert('Please enter your password');
		element.focus();
		return false;
	}

	return true;
}


function Login(e)
{
	var keynum 
	if(window.event) // IE
	{
		keynum = e.keyCode
	}
	else if(e.which) // Netscape/Firefox/Opera
	{
		keynum = e.which
	}	
	if (keynum == 13) //enter key
	{
		this.ValidateLogin();
	}
}

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 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){
	}
	else
	{
		strTemp = VALUE.substring(0,iTemp +1);
		break;
	}
	iTemp = iTemp-1;
	}
	return strTemp;
}

function LTrim(VALUE)
{
	var w_space = String.fromCharCode(32);
	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){}
		else
		{
			strTemp = VALUE.substring(iTemp,v_length);
			break;
		}
	iTemp = iTemp + 1;
	}
	return strTemp;
}