function CheckSearch (form)
{
	for (i=0; i<form.elements.length; i++)
	{	
		if (form.elements[i].type == "text" && form.elements[i].value == "")
    	{   
        	alert ("You didn't enter anything to search.")
        	form.elements[i].focus ()
        	return false
    	}
    }
    
    form.action = 'search.asp'
}

function CheckSearchKeystroke (evt, form)
{
	evt = (evt) ? evt : event
	var charCode = (evt.which) ? evt.which : evt.keyCode
	
    if (charCode == 13) CheckSearch (form)
}