// This script is called by the contact form elements onChange event. 

// Retrieve value from a RadioListBox
function getRadioSelectedValue(radioList)
{
    var options = radioList.getElementsByTagName('input');
    for(i=0;i<options.length;i++)
    {
        var opt = options[i];
        if(opt.checked)
        {
            return opt.value;
        }
    }
    return "";
}

// Store field value in cookie to preserve form state
function storeFieldValInCookie(fieldID, fieldValue) {
	// Remove ASP.NET ID prefix if it exists
	var index = fieldID.lastIndexOf('_');
	if (index == -1) {
		setCookie(fieldID, fieldValue, 7);
	} else {
		setCookie(fieldID.substr(index + 1), fieldValue, 7);
	}
}

// **************************** BASIC COOKIE HELPERS ***********************************

function getCookie(c_name)
{
    if (document.cookie.length>0)
      {
      c_start=document.cookie.indexOf(c_name + "=");
      if (c_start!=-1)
        {
        c_start=c_start + c_name.length+1;
        c_end=document.cookie.indexOf(";",c_start);
        if (c_end==-1) c_end=document.cookie.length;
        return unescape(document.cookie.substring(c_start,c_end));
        }
      }
    return "";
}

function setCookie(c_name,value,expiredays)
{
    var exdate=new Date();
    exdate.setDate(exdate.getDate()+expiredays);
    document.cookie=c_name+ "=" +escape(value)+
    ((expiredays==null) ? "" : ";expires="+exdate.toGMTString()+";path=/");
}

// **************************** BASIC COOKIE SUBKEY HELPERS ***********************************