Hi, i have a javascript function for summing all the values in textboxes and put the sum value in totaltextbox. function is doing coreect when i use tab for moving from one text box to another. but when i click CalToals button, the javascript function is not keeping the sum value in total textbox. i am kind of wonder the function which works under OnBlur() is not work for postback of button click() any help on this? Thanks