var allSpacesRe = /\s+/g;
var leadingSpacesRe = /^\s+/;
var trailingSpacesRe = /\s+$/;

function removeSpaces(s) { return s.replace(allSpacesRe, ""); }
function trimLeading(s) { return s.replace(leadingSpacesRe, ""); }
function trimTrailing(s) { return s.replace(trailingSpacesRe, ""); }
function trim(s) { return trimLeading(trimTrailing(s)); }


    function preview_image(objt,h,w)
    {

	var t=objt
	var nw
    nw=window.open("library/view_image.php?image=" + objt,"","menubar=0,resizeable=0,scrollbars=1,location=0,directories=0,status=0,width=" + w + ",height=" + h)
	
    return
	}
	
	
	function check_search_form(f)
	{
		if(trim(f.search_text.value)!="")
		{
			if(f.search_text.value.length<=2)
			{
			alert("Текст поиска должен быть более 2 символов!")
			return
			}
			else
			{f.submit()}
		}
	}


function do_logout()
{
  if(confirm(text_logout_confirm))
  {
	document.location.href=hname+"index.php?logout"
  }
}


function check_frm_add_photo(f)
{
	var err=0

	if(trim(f.name.value)=="")
	{err=1}
	
	if(err==0)
	{
		f.submit()
	}
}