function autocompletion_precheck(sender, e) {

	if ( ( e.keyCode >= 48 && e.keyCode <= 57 ) || ( e.keyCode >= 65 && e.keyCode <= 90 ) ) {
		xmlhttpPost();
	}
}

function xmlhttpPost() {
    strURL = "/cgi-bin\/ajaxNameComplete\.pl";
    var xmlHttpReq = false;
    var self = this;
    // Mozilla/Safari
    if (window.XMLHttpRequest) {
        self.xmlHttpReq = new XMLHttpRequest();
    }
    // IE
    else if (window.ActiveXObject) {
		try{
		    self.xmlHttpReq = new ActiveXObject("Msxml2.XMLHTTP")
		  }catch(e){
		    try{
		      self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
		    } catch(oc){
		    }
		}
    }
    self.xmlHttpReq.open('POST', strURL, true);
    self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    self.xmlHttpReq.onreadystatechange = function() {
        if (self.xmlHttpReq.readyState == 4) {
            updatepage(self.xmlHttpReq.responseText);
        }
    }
    self.xmlHttpReq.send(getquerystring());
}

function getquerystring() {
    var form = document.forms['loginForm'];
    var val = form.Prof_uname.value;
    qstr = 'q=' + escape(val);
    return qstr;
}


function updatepage(str){
	
	// Mozilla && Safari
	if (document.loginForm.Prof_uname.selectionStart && str.length > 0) {
		var preLength = document.loginForm.Prof_uname.value.length;	
	 	document.loginForm.Prof_uname.value = str;

		var spos = preLength;
		var epos = str.length;
	
		document.loginForm.Prof_uname.setSelectionRange(spos, epos);
	}
	// IE
	else if ( document.selection && str.length > 0) {
		
		var range = document.selection.createRange();
		var bookmark = range.getBookmark();
		var caret_pos = bookmark.charCodeAt(2) - 2;
		
		document.loginForm.Prof_uname.value = str;
		
		// IE7
		if (window.XMLHttpRequest) {
			range.moveStart('character', caret_pos -1);
		}
		// IE6
		else {
			range.moveStart('character', caret_pos);
		}
		range.moveEnd('character',str.length)
		range.select();

	} 

}

/*
function updatepage(str){
	document.getElementById('ac_list').innerHTML = str;
	//eval(document.getElementById('ac_list').innerHTML);

	eval(str);
}*/