function InitXMLHttpRequest() {

	var req=null;

	// Make a new XMLHttp object

	if (window.XMLHttpRequest) {

		req = new XMLHttpRequest();

	} else if (window.ActiveXObject) {

		req = new ActiveXObject("Microsoft.XMLHTTP");

	}

	return req;

}

function AjaxQuery(query, dest, func, params){

	var req=InitXMLHttpRequest();

	

	if(dest!=null) field=document.getElementById(dest);

	req.onreadystatechange = function() {

		if(dest=='') return 0;

		if (req.readyState == 4) {

			if(dest!=null) RunJS(dest, req.responseText);

			if(func!=null) {

				exec_str="func(";

				var len=params.length;

				for(var i=0;i<len;i++){

					exec_str+="params["+i+"]";

					if(i!=(len-1)) exec_str+=', ';

				}

				exec_str+=");";

				eval(exec_str);

			}

		}

	}

	req.open("GET", query+'&rnd='+Math.random(), true);

	req.send(null);

	if(dest!=null) field.innerHTML = "Loading data...";

}



function GetSectionAttrs(id_sec, dest, dest1, dest2){

	last=document.getElementById('sec_'+id_section);

	cur=document.getElementById('sec_'+id_sec);

	last.className='inactive_section';

	cur.className='active_section';

	id_section=id_sec;

	var del_button=document.getElementById('del_button');



	if(s_const[id_section]!=null){

		del_button.disabled=true;

	}

	else{

		del_button.disabled=false;

	}

	var field1=null, field2=null;

	field1=document.getElementById(dest1);

	if(dest2) field2=document.getElementById(dest2);

	field1.innerHTML='';

	if(field2) field2.innerHTML='';

	

	AjaxQuery("ajax_sections.php?sel=get_section_attrs&id_section=" + id_sec, dest);

}



function DelSecAttibute(id_section, id_attr){

	var params=new Array(4);

	params[0]=id_section;

	params[1]='sec_attrs_div';

	params[2]='cur_section_div';

	params[3]='attr_props_div';

	

	AjaxQuery("ajax_sections.php?sel=del_section_attr&id_attr="+id_attr, null, GetSectionAttrs, params);

}



function LoadAtributeForm(id_sec, id_attr, dest, dest2){

	field2=document.getElementById(dest2);

	if(field2) field2.innerHTML="";

	var act=(id_attr!=null)?'edit':'new';

	AjaxQuery("ajax_sections.php?sel=get_attr_form&act="+act+"&id_sec="+id_sec+"&id_attr="+id_attr, dest);

}



function LoadAttrPropsForm(control_type, id_attr, dest){

	query="ajax_sections.php?sel=get_attr_props_form&control_type="+control_type;

	if(id_attr!=null) query+="&id_attr="+id_attr;

	AjaxQuery(query, dest);

}



function RunJS(div_name, response){

	var d2 = document.getElementById(div_name);



	//Check user browser

	var agent=(window.navigator.appName=='Netscape')?'Firefox':'IE';



	if(agent=='IE'){

		parseJS(div_name, response, true);

	}

	else{

		//Mozilla

		var d1=d2.parentNode;

		var d_new=document.createElement('div');

		

		//Set same attributes as original

		var attributes=d2.attributes;

		var len=attributes.length;



		d_new.innerHTML=response;

		for(var i=0; i<len; i++){

			d_new.setAttribute(attributes[i].name, attributes[i].value);

		}

		

		d1.replaceChild(d_new, d2);

	}

}



function parseJS(div_name, html, cut_flag){

   

	if ('undefined' == typeof(cut_flag)) {

		cut_flag = false;

	}

	

	if (cut_flag) {

		var breaker = 0;

		var cut_html= html;

		var pattern = /<script.*src=".*"/g;

		var result  = cut_html.match(pattern);

		

		var indx= 1;

		var pos = 1;

		while (-1 != pos && 11 >= breaker++) {

			pos = cut_html.indexOf('src="');

			if (-1 != pos) {

				x = cut_html.substring(pos+5);

				pos_e = x.indexOf('"');

				cut_html = x.substring(pos_e);

				

				var s = document.createElement('script');

				s.id  = 'dynamic' + (indx);

				s.type= 'text/javascript';

				s.language = 'javascript';

				s.src = x.substring(0, pos_e);

				var b = document.getElementById(div_name);

				b.appendChild(s);

			}

		}

		

		

		cut_html = html;

		pattern = /<script.*\/script>/g;

		result = cut_html.match(pattern);

		

		var js_code = '';

		

		pos = 1;

		breaker = 0;

		

		var _body = document.getElementById(div_name);

		_body.innerHTML=html;

		

		while (-1 != pos && 11 >= breaker++) {

			pos = cut_html.indexOf('<script');

			if (-1 != pos) {

				cut_html = cut_html.substring(pos+5);

				pos_next = cut_html.indexOf('>');

				cut_html = cut_html.substring(pos_next+1);

				pos_end  = cut_html.indexOf('/script>');

				js_code += cut_html.substring(0, pos_end-1);

				cut_html = cut_html.substring(pos_end+8);

			}

		}



		cut_html = null;

		if(js_code!=''){

			var s = document.createElement('script');

			s.id  = 'dynamic' + (indx);

			s.type= 'text/javascript';

			s.language = 'javascript';

			s.text= js_code;

			var b = document.getElementById(div_name);

			b.appendChild(s);			

		}

	}

	

	return;

}



function LoadSectionAttrs(id_sec, id_form, dest){

	last=document.getElementById('sec_'+id_section);

	cur=document.getElementById('sec_'+id_sec);

	last.className='inactive_section';

	cur.className='active_section';

	id_section=id_sec;



	var after_load=function(dest){

		Sortable.destroy(sections[0]);

		Sortable.destroy(sections[1]);

		Sortable.create(sections[0],{tag:'div', onUpdate: updateForm, dropOnEmpty: true, containment: sections, only:'lineitem', constraint:false});

		Sortable.create(dest,{tag:'div', dropOnEmpty: true, containment: sections, only:'lineitem', constraint:false});

	}

	var params=Array(1);

	params[0]=dest;

	AjaxQuery("ajax_forms.php?sel=get_section_attrs&id_section=" + id_sec+"&id_form="+id_form, dest, after_load, params);

}



function LoadFormAttrs(id_form, id_b, dest){

	last=document.getElementById('block_'+id_block);

	cur=document.getElementById('block_'+id_b);

	if(last!=null) last.className='inactive_section';

	if(cur!=null) cur.className='active_section';

	id_block=id_b;

	

	var after_load=function(dest){

		Sortable.destroy(sections[0]);

		Sortable.destroy(sections[1]);

		Sortable.create(sections[1],{tag:'div', onUpdate: updateForm, dropOnEmpty: true, containment: sections, only:'lineitem', constraint:false});

		Sortable.create(sections[0],{tag:'div', dropOnEmpty: true, containment: sections, only:'lineitem', constraint:false});

	}

	var params=Array(1);

	params[0]=dest;

	AjaxQuery("ajax_forms.php?sel=get_form_attrs&id_form="+id_form+"&id_block="+id_b, dest, after_load, params);

}



//Initiate place control

//path_prefix is global variable, uses if defined to call for location.php from other scripts placed not in root folder

function initPlaceControl(id_user, id_attr, target, section, value, load_user_data){

	var country_div='country_div_'+id_attr;

	var region_div='region_div_'+id_attr;

	var city_div='city_div_'+id_attr;

	switch(target){

		case 'country': 

						var query="location.php?sec=" + section + "&sel=country&id_user="+id_user+"&id_attr="+id_attr;

						if(path_prefix!=null && path_prefix!='') query=path_prefix+query;

						if(load_user_data) query+="&load";

						AjaxQuery(query, country_div);

						document.getElementById(region_div).innerHTML='';

						document.getElementById(city_div).innerHTML='';

						break;

		case 'region': 	

						if(value==0){

							document.getElementById(region_div).innerHTML='';

							document.getElementById(city_div).innerHTML='';

							return false;

						}

						var query="location.php?sec=" + section + "&sel=region&id_user="+id_user+"&id_attr="+id_attr+"&id_country="+value;

						if(path_prefix!=null && path_prefix!='') query=path_prefix+query;

						if(load_user_data) query+="&load";

						AjaxQuery(query, region_div);

						document.getElementById(city_div).innerHTML='';

						break;

		case 'city': 	

						if(value==0){

							document.getElementById(city_div).innerHTML='';

							return false;

						}

						var query="location.php?sec=" + section + "&sel=city&id_user="+id_user+"&id_attr="+id_attr+"&id_region="+value;

						if(path_prefix!=null && path_prefix!='') query=path_prefix+query;

						if(load_user_data) query+="&load";

						AjaxQuery(query, city_div);

						break;

	}

}