var articleList_comparePage;

var articleList_AtLeastOneArticleMustBeSelected;

function ArticleList_Compare()
{
	if ( $('input[type=checkbox]:checked').size() > 4 )
    	{
		alert('Du kan bara jämföra 4 artiklar åt gången');
		return false;
		
	}
	if ( $('input[type=checkbox]:checked').size() >= 1 )
    	{
        		var articleNos = "";

	        	$.each($('input[type=checkbox]:checked'), function()
        		{
			if ( articleNos.length == 0 )
			{
				articleNos = $(this).attr('value');
			}
		         else
		         {
		         		articleNos = articleNos + "," + $(this).attr('value');
		   	}
		} )

		window.location = ( articleList_comparePage + "?articles=" + articleNos );
	}
	else
	{
		if ( articleList_AtLeastOneArticleMustBeSelected != undefined )
		{
			alert( articleList_AtLeastOneArticleMustBeSelected );
		}
	}	
}