title: How do i execute a function when text changes in a cell? (google docs)
body: <p>I've been lookin for a function to change the color of all cells in a row, when some text in a certain cell equals something. I found it here:</p>
  
  <p><a href="https://stackoverflow.com/questions/3703676/google-spreadsheet-script-to-change-row-color-when-a-cell-changes-text">Google Spreadsheet: Script to Change Row Color when a cell changes text;</a></p>
  
  <p>My question is, how can i execute this function, when the text changes?</p>