// extending javascript functions

document.getElementsByClassName = function(clsName, obj){
    var retVal = new Array();
    var mainObj = arguments.length == 2 ? obj : document;
    var elements = mainObj.getElementsByTagName("*");
    for(var i = 0;i < elements.length;i++){
        if(elements[i].className.indexOf(" ") >= 0){
            var classes = elements[i].className.split(" ");
            for(var j = 0;j < classes.length;j++){
                if(classes[j] == clsName)
                    retVal.push(elements[i]);
            }
        }
        else if(elements[i].className == clsName)
            retVal.push(elements[i]);
    }
    return retVal;
}




var isIE = (window.navigator.userAgent.indexOf("MSIE") > 0);

if (! isIE) {
  HTMLElement.prototype.__defineGetter__("innerText", 
              function () { return(this.textContent); });
  HTMLElement.prototype.__defineSetter__("innerText", 
              function (txt) { this.textContent = txt; });
}

function reorderDisplayedAnimals() {
	try {
	var table = document.getElementById('contentcontainer').getElementsByTagName('table')[0];
	var row;
	var nextRow;
	var tmpRow;
	var lastRow;
	var input;
	var max = table.rows.length - 1;
	row = table.rows[1];
	lastRow = table.rows[max];
	for (var i = 1;i < max;i++) {
		nextRow = row.nextSibling;
		input = row.getElementsByTagName("td")[0].getElementsByTagName("input")[0];
		if (input) {
			if (input.value == 0) {
				tmpRow = nextRow.nextSibling;
				table.getElementsByTagName("tbody")[0].insertBefore(row, lastRow);
				table.getElementsByTagName("tbody")[0].insertBefore(nextRow, lastRow);
				nextRow = tmpRow;
				max = max - 1;
			}
		}
		row = nextRow;
	}
	} catch(e) {}
}

function init() {
	reorderDisplayedAnimals();
}

// Declare function init to run when DOM is ready
var alreadyrunflag=0 //flag to indicate whether target function has already been run

if (document.addEventListener)
	document.addEventListener("DOMContentLoaded", function() { alreadyrunflag = 1; init();}, false)
else if (document.all && !window.opera) {
	document.write('<script type="text/javascript" id="contentloadtag" defer="defer" src="javascript:void(0)"><\/script>');
	var contentloadtag=document.getElementById("contentloadtag");
	contentloadtag.onreadystatechange=function() {
		if (this.readyState=="complete") {
			alreadyrunflag=1;
			init();
		}
	}
}

window.onload=function(){
 setTimeout("if (!alreadyrunflag) init();", 0)
}

function getArgumentValue(query,arg) {
	var pos;
	var value;
	var pairs = query.split("&");
	for (var i = 0;i<pairs.length;i++) {
		pos = pairs[i].indexOf('=');
		if (pos == -1) {
			continue;
		}
		if (pairs[i].substring(0,pos).toLowerCase() == arg.toLowerCase()) {
			value = pairs[i].substring(pos + 1).toLowerCase();
			return unescape(value);
		}
	}
	return '';
}