function menu(id)
{
var str=document.getElementById('menu').getElementsByTagName('a').length;
if(id>str || id<0)
{
document.getElementById('menu').getElementsByTagName('a')[0].className='link';
}
else
{
document.getElementById('menu').getElementsByTagName('a')[id].className='link';
}
}
function searchkey()
{
if(trim(document.searchform.keyword.value)=='' || document.searchform.keyword.value=='Search Products')
{
alert('Input The Products Keywords,Please!');
document.searchform.keyword.focus();
return false;
}
document.searchform.action='/search.html';
}

function trim(str){
	        var sStr = new String(str);
	        sStr = sStr.replace(/(^\s*)|(\s*$)/,"");
	        return sStr;
        }