function callSyncAjax(obj) {

I have the following scenario in my project: In the form the following field is there: Name : <input type="text" onchange="callSyncAjax(this)" /><input type="button" onclick="doSave()" value="Save"/> In the java script : function callSyncAjax(obj) { //some syncronized ajax function here return true; } function doSave() { //form submit functionaly here } Now i enter some name in name field and with out clicking any where or without tabbing i clicked on save button but in Fire Fox the doSave() function is not called. But i clicked again then its called. can any one help on this? why for first time the doSave() method not called?