function selectedchannel(self,color){
	self.style.borderTop = "2px solid " + color ;
	self.style.borderLeft = "2px solid " + color ;
	self.style.borderRight = "2px solid " + color ;
}
function unselectedchannel(self){
	self.style.borderTop = "0px" ;
	self.style.borderLeft = "0px" ;
	self.style.borderRight = "0px" ;
}

function validateForm(theform)
{
	pass = 1; //assume everything is ok
	msg = "";
		
	if ( theform.username.value=='' )
	{
		msg = msg + "- User Name cannot be empty\n- 用戶名稱欄不能空置\n\n";
		pass = 0;
	}
	
	if ( theform.password.value=='' )
	{
		msg = msg + "- Enter password cannot be empty\n- 輸入密碼欄不能空置\n\n";
		pass = 0;
	}
		
	if (pass == 1)
	{
		return true;
	}
	else
	{
		alert(msg);
		return false;
	}
	
}