/**
 *   set focus on selected form element
 */

function appSetFocus(el_id){
    if(document.getElementById(el_id)){
        document.getElementById(el_id).focus();
    }    
}

/**
 *   Change location (go to another page)
 */
function appGoTo(page, params, type){
	var type_ = (type != null) ? type : "page";
	var params_ = (params != null) ? params : "";
    document.location.href = 'index.php?'+type_+'='+page + params_;
}

/**
 *   set cookie
 */
function appSetCookie(name,value,days) {
    if (days){
        var date = new Date();
        date.setTime(date.getTime()+(days*24*60*60*1000));
        var expires = '; expires='+date.toGMTString();
    }
    else var expires = '';
    document.cookie = name+'='+value+expires+'; path=/';
}

/**
 *   get menu status
 */
function appGetMenuStatus(ind){
	var status = document.getElementById("side_box_content_"+ind).style.display;
	if(status == "none"){			
		return "none";
	}else{
		return "";
	}
}

/**
 *   toggle viewing of element
 */
function appToggleElementView(current_val, target_val, el, status1, status2){
	var status1 = (status1 != null) ? status1 : "none";
	var status2 = (status2 != null) ? status2 : "";
    if(!document.getElementById(el)){
		return false;
	}else{	
        if(current_val == target_val) document.getElementById(el).style.display = status1;
		else document.getElementById(el).style.display = status2;
    }  
}

/**
 *   toggle rss
 */
function appToggleRss(val){
	if(val == 1){
		if(document.getElementById("rss_feed_type")){
			document.getElementById("rss_feed_type").disabled = false;
		}
	}else{
		if(document.getElementById("rss_feed_type")){
			document.getElementById("rss_feed_type").disabled = true;
		}
	}
}

/**
 *   email validation
 */
function appIsEmail(str){
	var at="@";
	var dot=".";
	var lat=str.indexOf(at);
	var lstr=str.length;
	var ldot=str.indexOf(dot);
	if (str.indexOf(at)==-1) return false; 

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr) return false;
	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr) return false;
	if (str.indexOf(at,(lat+1))!=-1) return false;
	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot) return false;
	if (str.indexOf(dot,(lat+2))==-1) return false;
	if (str.indexOf(" ")!=-1) return false;

 	return true;
}

/**
 *  submit logout 
 */
function frmLogout_Submit(){
	if(document.getElementById('frmLogout')){
		document.getElementById('frmLogout').submit();					
	}									
}								

/**
 *  submit site search
 */
function appPerformSearch(page, kwd){
	if(kwd != null) document.forms['frmQuickSearch'].keyword.value = kwd;
	document.forms['frmQuickSearch'].p.value = page;
	document.forms['frmQuickSearch'].submit();
}

/**
 *  submit site quick search
 */
function appQuickSearch(){
	var keyword = document.frmQuickSearch.keyword.value;
	if(keyword == '' || keyword.indexOf("...") != -1){
		return false;
	}else{
		document.frmQuickSearch.submit();
	}
}

/**
 *  toggle by class
 */
function appToggleJQuery(el){
	$('.'+el).toggle("fast");
}

/**
 *  submit form 
 */
function appFormSubmit(frm_name, vars){
	if(document.getElementById(frm_name)){
		if(vars != null){
			vars_parts = vars.split('=');
			for(var i=0; i<vars_parts.length; i+=2) {
				if(document.getElementById(vars_parts[i])) document.getElementById(vars_parts[i]).value = vars_parts[i+1];
			}
		}	
		document.getElementById(frm_name).submit();					
	}									
}