function showhide(id,what) {
// fdf 20050316
// what mozet prinimat 2 znachenija: "show", "hide".

	var browser_type = define_browser();

	if (browser_type=="IE") {
		if (what=="hide")
			eval("document.all." + id + ".style.display='none'");
		else
			eval("document.all." + id + ".style.display=''");
	}
	else {	// (browser_type=="MO")
		if (what=="hide")
	    	eval("document.getElementById('" + id + "').style.display='none'");
		else
			eval("document.getElementById('" + id + "').style.display=''");
	}
	
	return true;
}