function validate(theForm) 
{
	var login_name =document.forms[0].login.value;
	var password =document.forms[0].password.value;
	
	var loginLen	=	login_name.length;
	var pwdLen		=	password.length;

	if(login_name=="")
	{
		alert("You must enter user name..."); 
		document.forms[0].login.focus();
		return false;
	}
	else if(login_name.charAt(0) == " ")
	{
		alert("First Letter must be character");
		document.forms[0].login.focus();
		return false;

	}
	else if(loginLen < 2)
	{
		alert("Login Name contains at least 2 characters"); 
		document.forms[0].login.focus();
		return false;
	}

	if(password == "")
	{
		alert("You must enter password..."); 
		document.forms[0].password.focus();
		return false;

	}
	else 
	{
		if(password.search(/\s/) != -1)
	    {
			alert("Password field should not contain spaces"); 
			document.forms[0].password.focus();
			return false;
		}
		else if(pwdLen < 4 )
		{
			alert("Password must contain at least 4 characters"); 
			document.forms[0].password.focus();
			return false;
		}	
	}	
}

function f1()
{
	document.forms[0].login.focus();
}
//Remove invalid spaces in agiven string
function check(f)
{
	var tmp1='';
	var tmp2=f.value;
	var tlength=tmp2.length;
	var tlength1=tmp2.length;
	for(i=0;i<tlength;i++)
	{
		if(tmp2.substring(0,1) == ' ') tmp2=tmp2.substring(1,tlength);
		if(tmp2.substring(tlength1-1,tlength1)==' ')
		{ 
			tmp2=tmp2.substring(0,tlength1-1); 
			tlength1=tlength1-1;
		}
	}
	tlength1=tmp2.length;
	var count=0;
	for(i=0;i<tlength1;i++)
	{
		if(tmp2.charAt(i)!=' ')
		{
			if(count==0)
			{ 
				tmp1=tmp1+tmp2.charAt(i);
			}
			else 
			{ 
				tmp1=tmp1+" ";
				tmp1=tmp1+tmp2.charAt(i); 
				count=0
			} 
		}
		else
		{	
			count=count+1;
		}
	} 
	return f.value=tmp1;
}


function searchEmptyUsername(frm)
{
	var text=frm.Username.value;
	text= check(frm.Username);
	if(text == "")
	{
		alert("Please enter Username");
		frm.Username.focus();
		return false;
	}
	else return true;
}