var srchstr = '" . $srchstr . "';
var text = '" . $srchstr . "';

function capture_text() {
  if (document.getSelection) {
    var str = document.getSelection();

    if (window.RegExp) {
      var regstr = unescape('%20%20%20%20%20');
      var regexp = new RegExp(regstr, 'g');
      str = str.replace(regexp, '');
    }

  } else if (document.selection && document.selection.createRange) {
    var range = document.selection.createRange();
    var str = range.text;
  } else {
    var str = 'Sorry, AUTO-SEARCH is not possible with your browser.';
  }

if (str.length > 3 && str.length < 46){
//	document.theform.srchstr.value = str;
//	url = 'master.php3?mode=tsearch2&srchstr='+ str +'&action=search#top';

//	url = 'http://knowledge.emedicine.com/cgi-bin/kni.pl?va='+ str + '&book=Medical';
	url = 'select_text.html?mode=search&srchstr='+str+'#top';
	viewer = window.open(url,'search','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,width=570,height=450,resizable=1');
	viewer.focus();
} // END STRING LENGTH;
return true;
}


if (window.Event) document.captureEvents(Event.MOUSEUP);
document.onmouseup = capture_text;