function toggle(status){idStatus=status;element=document.getElementById('email-field');if(idStatus==0){element.style.display='none'}else{element.style.display='block'}}function toggleLayer(whichLayer){var elem,vis;if(document.getElementById)elem=document.getElementById(whichLayer);else if(document.all)elem=document.all[whichLayer];else if(document.layers)elem=document.layers[whichLayer];vis=elem.style;if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)vis.display=(elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';vis.display=(vis.display==''||vis.display=='block')?'none':'block'}