if (document.images) {

	  var button1_up = new Image();
	  button1_up.src = './img/main/cz.gif';

	  var button1_over = new Image();
	  button1_over.src = './img/main/cz_on.gif';

	  var button2_up = new Image();
	  button2_up.src = './img/main/en.gif';

	  var button2_over = new Image();
	  button2_over.src = './img/main/en_on.gif';

	  var button3_up = new Image();
	  button3_up.src = './img/main/de.gif';

	  var button3_over = new Image();
	  button3_over.src = './img/main/de_on.gif';

	  var button4_up = new Image();
	  button4_up.src = './img/main/hmenu_24.gif';

	  var button4_over = new Image();
	  button4_over.src = './img/main/hmenu_10.gif';

	  var button5_up = new Image();
	  button5_up.src = './img/main/hmenu_26.gif';

	  var button5_over = new Image();
	  button5_over.src = './img/main/hmenu_15.gif';

	  var button6_up = new Image();
	  button6_up.src = './img/main/hmenu_28.gif';

	  var button6_over = new Image();
	  button6_over.src = './img/main/hmenu_12.gif';

	  var button7_up = new Image();
	  button7_up.src = './img/main/reg_mail_14.gif';

	  var button7_over = new Image();
	  button7_over.src = './img/main/reg_mail_16.gif';

	  var button8_up = new Image();
	  button8_up.src = './img/main/reg_mail_14.gif';

	  var button8_over = new Image();
	  button8_over.src = './img/main/reg_mail_16.gif';

	  var button9_up = new Image();
	  button9_up.src = './img/main/reg_mail_14.gif';

	  var button9_over = new Image();
	  button9_over.src = './img/main/reg_mail_16.gif';


	  var button10_up = new Image();
	  button10_up.src = './img/main/hmenu_de4.gif';

	  var button10_over = new Image();
	  button10_over.src = './img/main/hmenu_de3.gif';

	  var button11_up = new Image();
	  button11_up.src = './img/main/hmenu_de6.gif';

	  var button11_over = new Image();
	  button11_over.src = './img/main/hmenu_de5.gif';

	  var button12_up = new Image();
	  button12_up.src = './img/main/hmenu_de8.gif';

	  var button12_over = new Image();
	  button12_over.src = './img/main/hmenu_de7.gif';

	  var button13_up = new Image();
	  button13_up.src = './img/main/reg_mail_de.gif';

	  var button13_over = new Image();
	  button13_over.src = './img/main/reg_mail_de1.gif';

	  function over_button1() {
	    if (document.images) {
	      document["cz"].src = button1_over.src
	    }
	  }

	  function up_button1() {
	    if (document.images) {
	      document["cz"].src = button1_up.src
	    }
	  }

	  function over_button2() {
	    if (document.images) {
	      document["en"].src = button2_over.src
	    }
	  }

	  function up_button2() {
	    if (document.images) {
	      document["en"].src = button2_up.src
	    }
	  }

	  function over_button3() {
	    if (document.images) {
	      document["de"].src = button3_over.src
	    }
	  }

 	  function up_button3() {
	    if (document.images) {
	      document["de"].src = button3_up.src
	    }
	  }

	  function over_button4(name) {
	    if (document.images) {
	      document[name].src = button4_over.src
	    }
	  }

	  function up_button4(name) {
	    if (document.images) {
	      document[name].src = button4_up.src
	    }
	  }

	  function over_button5(name) {
	    if (document.images) {
	      document[name].src = button5_over.src
	    }
	  }

 	  function up_button5(name) {
	    if (document.images) {
	      document[name].src = button5_up.src
	    }
	  }

	  function over_button6(name) {
	    if (document.images) {
	      document[name].src = button6_over.src
	    }
	  }

	  function up_button6(name) {
	    if (document.images) {
	      document[name].src = button6_up.src
	    }
	  }

	  function over_button7(name) {
	    if (document.images) {
	      document[name].src = button7_over.src
	    }
	  }

 	  function up_button7(name) {
	    if (document.images) {
	      document[name].src = button7_up.src
	    }
	  }

	  function over_button8(name) {
	    if (document.images) {
	      document[name].src = button8_over.src
	    }
	  }

 	  function up_button8(name) {
	    if (document.images) {
	      document[name].src = button8_up.src
	    }
	  }

	  function over_button9(name) {
	    if (document.images) {
	      document[name].src = button9_over.src
	    }
	  }

 	  function up_button9(name) {
	    if (document.images) {
	      document[name].src = button9_up.src
	    }
	  }

	  function over_button10(name) {
	    if (document.images) {
	      document[name].src = button10_over.src
	    }
	  }

 	  function up_button10(name) {
	    if (document.images) {
	      document[name].src = button10_up.src
	    }
	  }

	  function over_button11(name) {
	    if (document.images) {
	      document[name].src = button11_over.src
	    }
	  }

 	  function up_button11(name) {
	    if (document.images) {
	      document[name].src = button11_up.src
	    }
	  }

	  function over_button12(name) {
	    if (document.images) {
	      document[name].src = button12_over.src
	    }
	  }

 	  function up_button12(name) {
	    if (document.images) {
	      document[name].src = button12_up.src
	    }
	  }

	  function over_button13(name) {
	    if (document.images) {
	      document[name].src = button13_over.src
	    }
	  }

 	  function up_button13(name) {
	    if (document.images) {
	      document[name].src = button13_up.src
	    }
	  }
	}