guys. I'm working with cakephp, html and javascript in my work, and I'm having problems with changing the values from a dropdown (select field) according to an upper dropdown, without refreshing the page by the time I select. To explain my situation, I have an array of values from a DB table called "States", connect to another table called "Citys" (I know that it's not correct to write citys, but for a DB it's better just to put an "s" instead of writing "Cities"). A State has many Cities. That's why the table "Citys" has an "idState" to reference the State it's related with. I want the user to select a state from the dropdown list. After that, a dropdown to choose the city appears, but that's not enough, I want just the cities from the state I've choosen to be listed. I know it has to be done with a JavaScript code, but I don't know how to query the database through the js code. I really don't know if I made myself clear. If not, please, ask me for more details about it.
Dropdown changes values according to an upper dropdown
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