Any fade-in/fade-out animations for GUI Text?

I have a scene going where the GUI Texts get instantiated at different times. But when you play it, it looks way to rapid. How can I add a fade-in animation to make it smoother?

http://www.unifycommunity.com/wiki/index.php?title=Fade

I think it will be easier to add a canvas group to the text (as well as an animation component), then make an animation which will change the alpha of the canvas group and thus the text in say 6 or 9 seconds.

//I used four Images 1 and four are same image , AlphaValues are float

var mainMenuTex :Texture;

var menuIndex:int = 0;

         if(menuIndex ==0)
		      alphaValue -= Mathf.Clamp01(Time.deltaTime/10); 
		else if(menuIndex ==1)
		      alphaValue1 -= Mathf.Clamp01(Time.deltaTime/10); 
		else if(menuIndex ==2)
		      alphaValue2 -= Mathf.Clamp01(Time.deltaTime/10); 
		
		if(alphaValue <0 && menuIndex == 0)
			{
		     menuIndex ++;
		     alphaValue = 0;
		    
		     }
		else if(alphaValue1 < 0 && menuIndex == 1)
			{
		     menuIndex ++;
		     alphaValue1 = 0;
		    
		     }  
		else if(alphaValue2 < 0 && menuIndex == 2)
			{
		     menuIndex   = 0;
		     alphaValue  = 1.0f;
	             alphaValue1 = 1.0f;
	             alphaValue2 = 1.0f;    
		     }     
	    Debug.Log("alphaValue"+alphaValue);
	   	
	   	GUI.color.a = 1.0 ;
	   	GUI.DrawTexture(Rect(0, 0, Screen.width, Screen.height), mainMenuTex[3],ScaleMode.StretchToFill, true, 0.0F);
	   	
	   	GUI.color.a = alphaValue2 ;  
	   	GUI.DrawTexture(Rect(0, 0, Screen.width, Screen.height), mainMenuTex[2],ScaleMode.StretchToFill, true, 0.0F);
	   	
	   	GUI.color.a = alphaValue1 ;	   	
	    GUI.DrawTexture(Rect(0, 0, Screen.width, Screen.height), mainMenuTex[1],ScaleMode.StretchToFill, true, 0.0F);
	    
	   	GUI.color.a = alphaValue ; 
	    GUI.DrawTexture(Rect(0, 0, Screen.width, Screen.height), mainMenuTex[0],ScaleMode.StretchToFill, true, 0.0F);
	   			   	
	    GUI.color.a = 1.0 ;