function clearValue(callObj,defVal,callAct){
	if(callAct && callObj.value==defVal){
		callObj.value='';
	}else if(!callAct && !callObj.value){
		callObj.value=defVal;
	}
}

function setSearchAction(callObj,callPart){
	callObj.form.action=((callPart=='Site') ? 'http://search.microsoft.com/results.aspx' : 'http://www.bing.com/search');
}