function overlay_size(element_id){if(!$(element_id))return;$(element_id).setStyles({"height":'0px',"width":'0px'});$(element_id).setStyles({"height":window.getScrollHeight()+'px',"width":window.getScrollWidth()+'px'});}
function urlencode(str){str=(str+'').toString();return encodeURIComponent(str).replace(/!/g,'%21').replace(/'/g,'%27').replace(/\(/g,'%28').replace(/\)/g,'%29').replace(/\*/g,'%2A').replace(/%20/g,'+');}