function MM_preloadImages() {
  var d=document; 
	if(d.images){ 
		if(!d.MM_p) d.MM_p=new Array();
		var i,j=d.MM_p.length,a=MM_preloadImages.arguments; 
		for(i=0; i<a.length; i++)
		if (a[i].indexOf("#")!=0){ 
			d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];
		}
	}
}

function MM_findObj(n, d) {
  	var p,i,x;  
 	if(!d) d=document; 
	if((p=n.indexOf("?"))>0 && parent.frames.length) {
		d=parent.frames[n.substring(p+1)].document; 
		n=n.substring(0,p);
	}
	if(!(x=d[n]) && d.all) x = d.all[n]; 
	for (i=0;!x && i<d.forms.length; i++) x = d.forms[i][n];
	for(i=0;!x && d.layers && i<d.layers.length; i++) x=MM_findObj(n,d.layers[i].document);
	if(!x && d.getElementById) x = d.getElementById(n); 
	return x;
}

function CellOver(obj,suffix){
	obj.className = obj.className + suffix;
}

function CellOut(obj,suffix){
	var className = new String(obj.className);
	var regexp = new RegExp(suffix);
	obj.className = className.replace(regexp,"");
}

function CellClick(obj){
	var tags = obj.childNodes;
	var href = new String("");
	for(var i=0;i<tags.length;i++){
		if (tags[i].tagName == "A" || tags[i].tagName == "a"){
			if (tags[i].href != "") 
				href = tags[i].href;
			else 
				href="javascript:;";
			break;
		}
	}
	if (href=="") href="javascript:;";
	window.location = href;
}
function MM_swapImage() { 
  	var i,j=0,x,a=MM_swapImage.arguments; 
  	document.MM_sr=new Array; 
  	for(i=0;i<(a.length-2);i+=3)
	if ((x=MM_findObj(a[i]))!=null){
		document.MM_sr[j++]=x; 
		if(!x.oSrc) x.oSrc=x.src; 
		x.src=a[i+2];
	}
}
function MM_swapImgRestore() { 
  var i,x,a=document.MM_sr; 
  for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function goBack(nomno, prod, kfp, catno){
	document.location = '?page=products&action=search';
}

function goBackToCart(nomno, prod, kfp, catno){
	document.location = '?page=products&action=show_cart';
}

function preOrder(nomno, prod, kfp, catno){
	window.location = '?page=products&action=pre_order';
}

function order(nomno, prod, kfp, catno){
	window.location = '?page=products&action=order';
}

function checkOut(nomno, prod, kfp, catno){
	window.location = '?page=products&action=checkout';
}

function checkIsCorrect(obj,nomno, prod, kfp, catno){
	if(!checkNumber(obj)) return false;
	var text = new String(obj.value);
	if(parseInt(text)==0){
		window.location = '?page=products&action=show_cart&remove_product=true&product_id='+obj.name.replace(/^productID_/,'');
	}
	else{
		window.location = '?page=products&action=show_cart&change_product=true&product_id='+obj.name.replace(/^productID_/,'')+'&count='+text;
	}
}

function checkNumber(obj){
	var regexp = /^\d+$/;
	var text = new String(obj.value);
	if (!text.match(regexp)){
		alert ('Enter positive number!');
		return false;
	}
	return true;
}

function language(lang,go_home) {
	if (go_home){
		langRE = /\/bg\/.*|\/en\/.*|\/ru\/.*|\\bg\\.*|\\en\\.*|\\ru\\.*/;
	}
	else{
		langRE = /\/bg\/|\/en\/|\/ru\/|\\bg\\|\\en\\|\\ru\\/;
	}
	document.location.replace(document.location.pathname.replace(langRE,'/'+lang+'/'+(go_home ? 'index.html' : '')));
}

function check_csv_file_field(id){
	var obj = document.getElementById(id);
	if(!obj) return false;
	if(obj.value){
		var regex = /.*\.csv/i;
		if(obj.value.match(regex)){
			return true;
		}
		else{
			alert("Файла не е CSV!");
			obj.focus();
			return false;			
		}
	}
	else{
		obj.focus();
		return false;
	}
}