function validate()
{
	var obj = document.login_form;
	if(obj.user_name.value=="")
	{
		alert("Sorry! we cannot complete your request, please enter username");
		obj.user_name.focus();
		return false;
	}
	
	if(obj.password.value=="")
	{
		alert("Sorry! we cannot complete your request, please enter password");
		obj.password.focus();
		return false;
	}
	else{
			obj.submit();
		}
	
}
function validatelogin()
{
	var obj = document.login_form2;
	if(obj.user_name.value=="")
	{
		alert("Sorry! we cannot complete your request, please enter username");
		obj.user_name.focus();
		return false;
	}
	
	if(obj.password.value=="")
	{
		alert("Sorry! we cannot complete your request, please enter password");
		obj.password.focus();
		return false;
	}
	else{
			obj.submit();
		}
	
}

function clearname()
{
	var obj = document.login_form;
	if(obj.user_name.value !='')
	{
		obj.user_name.value="";
	}
	
}

function clearpass()
{
	var obj = document.login_form;
	
	if(obj.password.value !='')
	{
		obj.password.value ="";
	}
	
}


function clearsearch()
{
	var obj = document.search_form;
	
	if(obj.q.value !='')
	{
		obj.q.value ="";
	}
	
}