var tempnum =  document.detaildisp.inline.value; 
 var tempcost = 0; var tempamt =0;var tempopt = 0;var chkinrtn = chkinput(tempnum); if (chkinrtn) {alert(tempnum + ' is not a valid number'); tempnum = 0; } 
 <br />
<b>Fatal error</b>:  Call to a member function query() on a non-object in <b>/home/hornycom/public_html/arrowbuilder/jslines1s2.php</b> on line <b>10</b><br />