minor changes

src/tec/letsgoing/ardublock/simulator/simcode/datatypes/SimTypeInt.java

@@ -32,11 +32,12 @@ public class SimTypeInt extends SimCode {
 					value = (short) ret.getValue();
 				} catch (Exception e) {
 					//if a none-SimTypeInt Block is attached 
-					if(e.toString().contains("SimTypeLong")) {
+					try {
 						SimTypeLong ret = (SimTypeLong) followBlock.run(_arduino, functionHead);
 						value = (short) ret.getValue();
-					}else {
-						e.printStackTrace();
+					} catch (Exception e1) {
+						// TODO Auto-generated catch block
+						e1.printStackTrace();
 					}
 				}	
 		}

src/tec/letsgoing/ardublock/simulator/simcode/datatypes/SimTypeLong.java

@@ -32,11 +32,12 @@ public class SimTypeLong extends SimCode {
 				value = (int) ret.getValue();
 			} catch (Exception e) {
 				//if a none-SimTypeLong Block is attached 
-				if(e.toString().contains("SimTypeInt")) {
+				try {
 					SimTypeInt ret = (SimTypeInt) followBlock.run(_arduino, functionHead);
 					value = (short) ret.getValue();
-				}else {
-					e.printStackTrace();
+				} catch (Exception e1) {
+					// TODO Auto-generated catch block
+					e1.printStackTrace();
 				}
 			}	
 		}