var defVal = 'Поиск...';

function fnSearchChanged(el)
{
	if(el.value == '')
	{
		el.value = defVal;
		el.className = "gray";
	}	
}

function fnSearchFocused(el)
{
	if(el.value == defVal)
	{
		el.value = '';
		el.className = '';
	}
}

function doSearch()
{
	var el = document.getElementById("inpSearch");
	if(el && el.value != '' && el.value != defVal)
		window.location = "http://www.yandex.ru/yandsearch?text=" + el.value + "&stype=www&site=www.kres.ru&ras=1&site_manually=true";
}