function in_array(search_phrase, array)
{
	for( var i = 0; i < array.length; i++ ) {
		if( search_phrase == array[i] ){
			return true;
		}
	}
	return false;
}


var Class = {
  create: function() {
    return function() {
      this.initialize.apply(this, arguments);
    }
  }
}

function getParentTag(obj, tag)
{
	var tmp = obj;
	while (tmp = tmp.parentNode) {
		if (tmp.nodeName == tag) {
			return tmp;
		}
	}
	return null;
}

function getPreviousTag(obj, tag)
{
	var tmp = obj;
	while (tmp = tmp.previousSibling) {
		if (tmp.nodeName == tag) {
			return tmp;
		}
	}
	return null;
}

function openPopupByLocation(location, target, pW, pH)
{
	if (typeof pW != 'number') {
		pW = screen.width/2;
	}
	if (typeof pH != 'number') {
		pH = screen.height - screen.height/3;
	}
	var top = screen.height/2-pH/2;
	var left = screen.width/2-pW/2; 
	var params = 'toolbar=0,location=0,menubar=0,resizable=1,status=0,scrollbars=yes,screenX='
		+left+',screenY='+top+',top='+top+',left='+left
		+',width='+pW+',height='+pH;
	var wnd = window.open(location, target, params);
		wnd.opener = self;
		wnd.focus();
}

function openPopup(a, pW, pH)
{
	openPopupByLocation(a.href, a.getAttribute('target'), pW, pH);
	return false;
}

function getElementPos(obj)
{
	var l = 0;
	var t = 0;
	var w = obj.offsetWidth;
	var h = obj.offsetHeight;
	while (obj) {
		l += obj.offsetLeft;
		t += obj.offsetTop;
		if ((obj.tagName != "TABLE") && (obj.tagName != "BODY")) {
			l += (obj.clientLeft)?obj.clientLeft:0;
			t += (obj.clientTop)?obj.clientTop:0;
		}
		obj = obj.offsetParent;
	}
	var res = new Object();
	res.x = l;
	res.y = t;
	res.left = l;
	res.top = t;
	res.w = w;
	res.h = h;
	res.width = w;
	res.height = h;
	return res;
}

function urlencode( str ) 
{
    // URL-encodes string
    // 
    // +    discuss at: http://kevin.vanzonneveld.net/techblog/article/javascript_equivalent_for_phps_urlencode/
    // +       version: 809.1713
    // +   original by: Philip Peterson
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: AJ
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // %          note: info on what encoding functions to use from: http://xkr.us/articles/javascript/encode-compare/
    // *     example 1: urlencode('Kevin van Zonneveld!');
    // *     returns 1: 'Kevin+van+Zonneveld%21'
    // *     example 2: urlencode('http://kevin.vanzonneveld.net/');
    // *     returns 2: 'http%3A%2F%2Fkevin.vanzonneveld.net%2F'
    // *     example 3: urlencode('http://www.google.nl/search?q=php.js&ie=utf-8&oe=utf-8&aq=t&rls=com.ubuntu:en-US:unofficial&client=firefox-a');
    // *     returns 3: 'http%3A%2F%2Fwww.google.nl%2Fsearch%3Fq%3Dphp.js%26ie%3Dutf-8%26oe%3Dutf-8%26aq%3Dt%26rls%3Dcom.ubuntu%3Aen-US%3Aunofficial%26client%3Dfirefox-a'
                                     
    var histogram = {}, histogram_r = {}, code = 0, tmp_arr = [];
    var ret = str.toString();
    
    var replacer = function(search, replace, str) {
        var tmp_arr = [];
        tmp_arr = str.split(search);
        return tmp_arr.join(replace);
    };
    
    // The histogram is identical to the one in urldecode.
    histogram['!']   = '%21';
    histogram['%20'] = '+';
    
    // Begin with encodeURIComponent, which most resembles PHP's encoding functions
    ret = encodeURIComponent(ret);
    
    for (search in histogram) {
        replace = histogram[search];
        ret = replacer(search, replace, ret) // Custom replace. No regexing
    }
    
    // Uppercase for full PHP compatibility
    return ret.replace(/(\%([a-z0-9]{2}))/g, function(full, m1, m2) {
        return "%"+m2.toUpperCase();
    });
    
    return ret;
}

// {{{ number_format
function number_format( number, decimals, dec_point, thousands_sep ) {
    // Format a number with grouped thousands
    // 
    // +    discuss at: http://kevin.vanzonneveld.net/techblog/article/javascript_equivalent_for_phps_number_format/
    // +       version: 809.2411
    // +   original by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +     bugfix by: Michael White (http://getsprink.com)
    // +     bugfix by: Benjamin Lupton
    // +     bugfix by: Allan Jensen (http://www.winternet.no)
    // +    revised by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
    // +     bugfix by: Howard Yeend
    // *     example 1: number_format(1234.5678, 2, '.', '');
    // *     returns 1: 1234.57     

    var n = number, c = isNaN(decimals = Math.abs(decimals)) ? 2 : decimals;
    var d = dec_point == undefined ? "." : dec_point;
    var t = thousands_sep == undefined ? "," : thousands_sep, s = n < 0 ? "-" : "";
    var i = parseInt(n = Math.abs(+n || 0).toFixed(c)) + "", j = (j = i.length) > 3 ? j % 3 : 0;
    
    return s + (j ? i.substr(0, j) + t : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : "");
}// }}}