Could someone tell me how to use a character value with this statement:

thisform.Grid1.SetAll("DynamicBackColor", ;
"IIF thisform.grid1.ctime.combo1.value=1300, RGB(255,255,255) ;
, RGB(0,255,0))", "Column") && Alternate white and green records

The value is actually character "1300", but putting in quotes obviously causes an error (quotes within quotes). How do I put quotes in?