function hideThis(hideName,showName){

		var i,j;

		var productsHide = document.getElementsByName(hideName);

		var productsShow = document.getElementsByName(showName);

		if(hideName != 'all' && showName != 'all'){

		

			for(i = 0; i < productsHide.length ; i++ ){

				productsHide[i].style.display="none";

			}

			

			for(j = 0; j < productsShow.length; j++){

				productsShow[j].style.display="block";

			}

			

	   }else{

	   

			for(i = 0; i < document.getElementsByName('forSale').length ; i++ ){

				document.getElementsByName('forSale')[i].style.display="block";

			}

			

			for(j = 0; j < document.getElementsByName('forRent').length; j++){

				document.getElementsByName('forRent')[j].style.display="block";

			}

			

	   }

	   return false;

	}