var request;
var dest;

  function processStateChange(){
    if (request.readyState == 4){
      contentDiv = document.getElementById(dest);
      if (request.status == 200){
        response = request.responseText;
        contentDiv.innerHTML = response;
      } else {
        contentDiv.value = "Error: Status "+request.status;
      }
    }
  }

  function loadHTML(URL, destination){
    dest = destination;
    if (window.XMLHttpRequest){
      request = new XMLHttpRequest();
      request.onreadystatechange = processStateChange;
      request.open("GET", URL, true);
      request.send(null);
    } else if (window.ActiveXObject) {
      request = new ActiveXObject("Microsoft.XMLHTTP");
      if (request) {
        request.onreadystatechange = processStateChange;
        request.open("GET", URL, true);
        request.send();
      }
    }
  }

  function str_ireplace ( search, replace, subject ) {
    var i;
    if(!(replace instanceof Array)){
        replace=new Array(replace);
        if(search instanceof Array){//If search    is an array and replace    is a string, then this replacement string is used for every value of search
            while(search.length>replace.length){
                replace[replace.length]=replace[0];
            }
        }
    }
    if(!(search instanceof Array))search=new Array(search);
    while(search.length>replace.length){//If replace    has fewer values than search , then an empty string is used for the rest of replacement values
        replace[replace.length]='';
    }
    if(subject instanceof Array){//If subject is an array, then the search and replace is performed with every entry of subject , and the return value is an array as well.
        for(k in subject){
            subject[k]=str_replace(search,replace,subject[k]);
        }
        return subject;
    }
    for(var k=0; k<search.length; k++){
        reg = new RegExp(search[k], 'gi');
        subject = subject.replace(reg, replace[k]);
    }
    return subject;
	}
	
	function explode(inputstring, separators, includeEmpties) {
		inputstring = new String(inputstring);
		separators = new String(separators);

		if(separators == "undefined") {
			separators = " :;";
		}

		fixedExplode = new Array(1);
		currentElement = "";
		var count = 0;

		for(x=0; x < inputstring.length; x++) {
			char = inputstring.charAt(x);
			if(separators.indexOf(char) != -1) {
				if ( ( (includeEmpties <= 0) || (includeEmpties == false)) && (currentElement == "")) { 
				} else {
					fixedExplode[count] = currentElement;
					count++;
					currentElement = ""; 
				}
			}	else { currentElement += char; }
		}

		if (( ! (includeEmpties <= 0) && (includeEmpties != false)) || (currentElement != "")) {
			fixedExplode[count] = currentElement; 
		} 
		return fixedExplode;
	}
	
	function isdate(date) {
		arr_date = explode(date, "-");
		day = arr_date[0];
		month = arr_date[1] - 1;
		year = arr_date[2];
		mydate = new Date(year, month, day, '00', '00', '00');
		//alert(day+"-"+month+"-"+year+" "+mydate.getDate()+"-"+mydate.getMonth()+"-"+mydate.getFullYear());
		if((day == mydate.getDate())&&(month == mydate.getMonth())&&(year == mydate.getFullYear())&&(year > 1753)) {
			return(true);
		} else {
			return(false);
		}
	}
	
	function istime(time) {
		arr_time = explode(time, ":");
		hour = arr_time[0];
		min = arr_time[1];
		if (arr_time.size() < 3) sec = '00'; else sec = arr_time[2];
		mytime = new Date('01','01','2001',hour, min, sec);
		if((hour==mytime.getHours())&&(min==mytime.getMinutes())&&(sec==mytime.getSeconds())) {
			return(true);
		} else {
			return(false);
		}
	}
	
	String.prototype.trim = function() {
		return this.replace(/^\s+|\s+$/g,"");
	}
	String.prototype.ltrim = function() {
		return this.replace(/^\s+/,"");
	}
	String.prototype.rtrim = function() {
		return this.replace(/\s+$/,"");
	}
	
	function update_menu() {
		new Ajax.Request('/index.php?ajax=update_menu', {method: 'post',	onSuccess: function(transport) {$('adm_menu').innerHTML = transport.responseText;}});
	}
	
	function update_cart() {
		new Ajax.Request('/index.php?ajax=update_cart', {method: 'post',	onSuccess: function(transport) {$('module_cart_menu').innerHTML = transport.responseText;}});
	}
	
	function update_attention() {
		new Ajax.Request('/index.php?ajax=update_attention', {method: 'post',	onSuccess: function(transport) {$('module_attention').innerHTML = transport.responseText;}});
	}
	
	function delete_user(id) {
		if (confirm('Этот пользователь будет удален?')) {
			grayOut(true);
			new Ajax.Request('/index.php?ajax=function&action=delete_user&id='+id, {method: 'post',	onSuccess: function(transport) {grayOut(false); $('main_content').innerHTML = transport.responseText;}});
		}
	}
	function enterPress(event, button) {
		if((event.keyCode == 0xA)||(event.keyCode == 0xD)) {button.click();}
	}
	function tr_ch_color(target, background, text) {
		target.style.background = background;
		target.style.color = text;
	}