var gridAjax;
var gridStatus = 0;
var gridInterval;
var gridData;

function grid_set_sorting(in_colname, in_id){
	if(gridStatus == 0){
		grid_lock(in_id);
		gridAjax = new ajax('https://sab.engels.eu/page=datagrid.get/id='+in_id+'/q=sort/set_sort='+in_colname, {update: 'grid_'+in_id, evalScripts: true, onComplete: function(){ grid_release(); }}).request();
	}
}

function grid_set_page(in_page, in_id){
	if(gridStatus == 0){
		grid_lock(in_id);
		gridAjax = new ajax('https://sab.engels.eu/page=datagrid.get/id='+in_id+'/q=page/set_page='+in_page, {update: 'grid_'+in_id, evalScripts: true, onComplete: function(){ grid_release(); }}).request();
	}
}

function grid_set_filter(in_filter, in_id){
	if(gridStatus == 0){
		grid_lock(in_id);
		gridAjax = new ajax('https://sab.engels.eu/page=datagrid.get/id='+in_id+'/q=filter/set_filter='+in_filter, {update: 'grid_'+in_id, evalScripts: true, onComplete: function(){ grid_release(); }}).request();
	}
}

function grid_lock(in_id){
	gridStatus = 1;
	$('loading_'+in_id).setStyle('height', $('viewport_'+in_id).offsetHeight+"px");
	$('loading_'+in_id).setStyle('width', $('viewport_'+in_id).offsetWidth+"px");
	$('loader_'+in_id).setStyle('marginTop', Math.round($('viewport_'+in_id).offsetHeight/2 - $('loader_'+in_id).offsetHeight/2) + "px");
	$('loader_'+in_id).setStyle('marginLeft', Math.round($('viewport_'+in_id).offsetWidth/2 - $('loader_'+in_id).offsetWidth/2) + "px");
	$('loading_'+in_id).setStyle('display', 'block');
	$('loading_'+in_id).setStyle('opacity', 0.7);
	gridInterval = setTimeout('grid_release();', 5000);
}

function grid_release(){
	clearInterval(gridInterval);
	gridStatus = 0;
}