// sz

function chgclass(a,b){var c=document.getElementById(a);c.className=b}
function disselect(a,b){if(b==1){state=false}else{state=true}var c=document.getElementById(a);c.disabled=state}
function divtoggle(a){var b=document.getElementById(a).style;if((b.display=='none')|(b.display=='')){b.display='block'}else{b.display='none'}}
function divtogglevis(a){var b=document.getElementById(a).style;if((b.visibility=='hidden')|(b.visibility=='')){b.visibility='visible'}else{b.visibility='hidden'}}

function divtogglevison(a){var b=document.getElementById(a).style;b.visibility='visible'}
function divtogglevisof(a){var b=document.getElementById(a).style;b.visibility='none'}
function divtogglbin(a,b){var c=document.getElementById(a).style;c.display='none';var d=document.getElementById(b).style;d.display='block'}

function divtogglbin(a,b){var c=document.getElementById(a).style;c.display='none';var d=document.getElementById(b).style;d.display='block'}

function imgtgl(a)
	{
		var b=document.getElementById('left_1').style;b.display='none';
		var c=document.getElementById('left_2').style;c.display='none';
		var d=document.getElementById('left_3').style;d.display='none';
		var e=document.getElementById('left_'+a).style;e.display='block';	
	}