function clearChildControls(objectId)
{
    if ( !document.getElementById || !document.getElementsByTagName) return;

    var nodesToDisable = {button :'', input :'', optgroup :'', option :'', select :'', textarea :''};

    var node, nodes;
    var div = document.getElementById(objectId);
    if (!div) return;

    nodes = div.getElementsByTagName('*');
    if (!nodes) return;

    var i = nodes.length;
    while (i--)
    {
        node = nodes[i];
        if ( node.nodeName && node.nodeName.toLowerCase() in nodesToDisable )
        {
            switch(node.nodeName)
            {
              case 'INPUT':
                node.checked = false;
                break;
              default:
              break;
            }       
         }
    }
}

function createCookie(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=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}


/*
Written by Jonathan Snook, http://www.snook.ca/jonathan
Add-ons by Robert Nyman, http://www.robertnyman.com
*/
function getElementsByClassName(oElm, strTagName, strClassName){
    var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
    var arrReturnElements = new Array();       
    strClassName = strClassName.replace(/\-/g, "\\-");
    var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
    var oElement;
    
    for(var i=0; i<arrElements.length; i++)
    {
       oElement = arrElements[i];
       if(oRegExp.test(oElement.className))
       {
           arrReturnElements.push(oElement);
       }
    }
    return (arrReturnElements)
}