var SearchTermFlag = false;          

function SearchIt()
{
    var obj=document.getElementById("SearchStr");
    obj.value=obj.value.replace(/^\s+|\s+$/g,'');
    if((SearchTermFlag)&&(obj.value!=''))
    {
        //document.Search.submit();
        window.location = "SearchResult.asp?SearchStr=" + obj.value
    }
    else
    {
        alert("Please enter keywords to search field");
    }
}