// JavaScript Document

function Background(item)
{

	var style_get;
	var style_set;
	
	if(document.body.className == 'BodyYellow')
		style_get = '';
    else if(document.body.className == 'BodyBlue')
		style_get = ''; 		
	else
		style_get = '_night';

	 
	switch(item.name)
	{
		case 'white':
		  style_set = '';
		  document.body.className = 'BodyYellow';
		  ChangeSameStyle(style_get, style_set);
		  break;
		  
		case 'blue':
		  style_set = '';
	      document.body.className = 'BodyBlue';
	      ChangeSameStyle(style_get, style_set);
		  break;
		  
		case 'red':
		  style_set = '_night'; 
		  document.body.className = 'BodyRed';
		  ChangeSameStyle(style_get, style_set);		    
		    
		  break;
		  
		case 'black':
		  style_set = '_night';
		  document.body.className = 'BodyBlack';
		  ChangeSameStyle(style_get, style_set);

		  break;
	}
	var date = new Date;
	date.setFullYear(date.getFullYear()+1);
	document.cookie = "expires="+date.toGMTString();
	
	return true;
}

function ChangeSameStyle(style_get, style_set)
{
    var PageLayout;
	var ImageTitle;
	var ImageBorder;
    if(style_get!=style_set)
    {
	      do
		  {
		  	ImageTitle = document.getElementById('ImageTitle'+style_get);
		  	if(ImageTitle!=null)
  	  		  ImageTitle.id = 'ImageTitle'+style_set;	


		  }while(ImageTitle);
		  
		  do
		  {
		  	ImageBorder= document.getElementById('ImageBorder'+style_get);

		  	if(ImageBorder!=null)
		  	{
		  		ImageBorder.id = 'ImageBorder'+style_set;
		  		ImageBorder.className = 'ImageBorder'+style_set;
		  	}		      

		  }while(ImageBorder);
		  
		  do 
		  {
		  	 
		  	PageLayout = document.getElementById('PageLayout'+style_get) ;
		  	if(PageLayout!=null)
		      PageLayout.id = 'PageLayout'+style_set;
		      		      
		  }while(PageLayout);
    }
		  
    return false;  
}