var myStory = app.selection[0].parentStory;  
var myPara = app.selection[0].appliedParagraphStyle 
myStory.paragraphs[0].appliedParagraphStyle=myPara;  
var nPara = myStory.paragraphs.length;  
var aStyle = myStory.paragraphs[0].appliedParagraphStyle;  
for (var myCounter = 1; myCounter < nPara; myCounter++){  
var nextStyle = aStyle.nextStyle;  
 
// fuer cs 4: 
//myStory.paragraphs[myCounter].applyParagraphStyle(nextStyle,  true);  
// fuer cs, cs 2: 
myStory.paragraphs[myCounter].applyStyle(nextStyle, true);  
aStyle = nextStyle;  
} 

// die Absätze der Auswahl 
var curSel = app.selection[0].paragraphs; 
 
// das Format des ersten Absatzes speichern 
var aStyle = curSel[0].appliedParagraphStyle; 
 
// eine Schleife durch die Absätze der Auswahl 
for (n=1; n<curSel.length; n++) { 
	var nStyle = aStyle.nextStyle; 
	curSel[n].applyParagraphStyle(nStyle, true); 
	aStyle = nStyle; 
} 

// das erste Format 
var aStyle = app.documents[0].paragraphStyles.itemByName("01_titel"); 
 
// die Absätze der Auswahl 
var curSel = app.selection[0].paragraphs; 
 
// dem ersten Absatz das Startformat zuweisen 
curSel[0].applyParagraphStyle(aStyle, true); 
 
// eine Schleife durch die Absätze der Auswahl 
for (n=1; n<curSel.length; n++) { 
	var nStyle = aStyle.nextStyle; 
	curSel[n].applyParagraphStyle(nStyle, true); 
	aStyle = nStyle; 
}