Can you fix scripts problem?

I got these three script, their work very well, but not in the cell, can you fix it:

Script 1:

00.// left Indent: whatever, firstLineIndent: 8 mm 
01. 
02.var curDoc = app.activeDocument; 
03. 
04.if ( !app.selection.length ) { 
05.    var paras = curDoc.stories.everyItem().paragraphs; 
06.} 
07.else if(app.selection.length == 1 && app.selection[0].hasOwnProperty( “baseline” )) { 
08.        var paras = app.selection[0].paragraphs; 
09.} 
10.else { 
11.    alert(“Something wrong with your selection!”); 
12.    exit(); 
13.} 
14. 
15.paras.everyItem().firstLineIndent = “8mm”; 

Script 2:

01.// left Indent: whatever, firstLineIndent: 0 
02. 
03.var curDoc = app.activeDocument; 
04. 
05.if ( !app.selection.length ) { 
06.    var paras = curDoc.stories.everyItem().paragraphs; 
07.} 
08.else if(app.selection.length == 1 && app.selection[0].hasOwnProperty( “baseline” )) { 
09.        var paras = app.selection[0].paragraphs; 
10.} 
11.else { 
12.    alert(“Something wrong with your selection!”); 
13.    exit(); 
14.} 
15. 
16.paras.everyItem().firstLineIndent = “0mm”; 

Script 3:

01.// left Indent: 8 mm, firstLineIndent: -8 mm 
02. 
03.var curDoc = app.activeDocument; 
04. 
05.if ( !app.selection.length ) { 
06.    var paras = curDoc.stories.everyItem().paragraphs; 
07.} 
08.else if(app.selection.length == 1 && app.selection[0].hasOwnProperty( “baseline” )) { 
09.        var paras = app.selection[0].paragraphs; 
10.} 
11.else { 
12.    alert(“Something wrong with your selection!”); 
13.    exit(); 
14.} 
15. 
16.for ( var i = 0; i < paras.length; i ++ ) { 
17.    var curPara = paras[i]; 
18.    if ( curPara.leftIndent == 0 ) { 
19.        curPara.leftIndent = “8mm”; 
20.    } 
21.    curPara.firstLineIndent = “-8mm”; 
22.}