I want to develop a web page which has diff drop down menus.The user should
select a unique value for each dropdown menu i.e, if 1 is selected in the
1st drop dwon menu , then it should not be selected in the remaining drop
down menus.If 1 is selected in any other drop down menu then an alert should
be displayed saying that the user should select a diff option.Can somebody
please help me to do this in javascript.If anybody can tell how to compare
the values selected in the drop down menus then it will be very helpful.Thanks
a lot