function checkTerms()
{

    var searchString = document.search_frm.terms.value;
    
    searchString = trimString(searchString);
    document.search_frm.terms.value = searchString ;
    if (searchString.length == 0 || searchString.indexOf(" ") == 0)
	{
		alert("Please enter a search term.")
		document.search_frm.terms.focus();
		return false;
	}
	else
	{
		document.search_frm.submit();
	}

	
}


function keypressed()
{
    if(event.keyCode=='13')
    {
    if(checkTerms()!= true)
    return false;
    }
} 

function checkTerms1()
{
	//if (document.getElementById("terms").value.length == 0 || document.getElementById("terms").value.indexOf(" ") == 0)
	if (document.search_frm.terms.value.length == 0 || document.search_frm.terms.value.indexOf(" ") == 0)
	{
		alert("Please enter a search term.")
		document.search_frm.terms.focus();
		return false
	}
	else
	{
		document.search_frm.submit();
	}
}

function trimString (str) 
        {
          
            str = str.replace(/^\s+/, '');
            for (var i = str.length - 1; i >= 0; i--) 
            {
                if (/\S/.test(str.charAt(i))) 
                {
                    str = str.substring(0, i + 1);
                    break;
                }
            }
            return str;            
        }