ie=false
ns=false
op=false

if (window.navigator.userAgent.indexOf('Opera') != -1 ) {
	op = true
} else {
	if (window.navigator.appName.indexOf('Microsoft') != -1 ) {
		ie = true
		}
	}

if (window.navigator.appName.indexOf('Netscape') != -1) {
	ns = true
	}





hide_y = 444
show_y = 334
y_inc = 4.6 
var last_tid

var is_active = false
var que_active = false

function check_switch() {
	if (is_active != que_active) {
		clearTimeout(last_tid)
		if (que_active == true) {
			document.all.ddMenu.style.visibility = 'Visible'
			move_menu(y_inc)
		} else {
			document.all.ddMenuActiveText.innerText = 'Каталог'
			document.all.ddMenu.style.visibility = 'Visible'
			move_menu(-y_inc)
			}
		is_active=que_active
		}
	window.setTimeout('check_switch()',100)
	}

function drop_up() {
	que_active = true
	}

function drop_down() {
	que_active = false
	}

	
function move_menu(y) {
	var topi = parseInt(document.all.ddMenu.style.top)
	if ((topi > show_y+y_inc & y>0) || (topi < hide_y+y_inc & y<0)) {
		topi = topi-y
		document.all.ddMenu.style.top = topi.toString()
		
		if (y>0) {
			var rnum  = Math.round((hide_y-10-topi)/21)
			if (rnum < document.all.ddMenuTable.rows.length & rnum>=0) {
				if (document.all.ddMenuTable.rows[rnum].style.display != 'inline') document.all.ddMenuTable.rows[rnum].style.display='inline'
				}
		} else {
			var rnum  = Math.round((hide_y-topi)/21)
			if (rnum < document.all.ddMenuTable.rows.length & rnum>=0) {
				if (document.all.ddMenuTable.rows[rnum].style.display != 'none') document.all.ddMenuTable.rows[rnum].style.display='none'
				}
			}

		
		last_tid = window.setTimeout('move_menu('+y+')',1)
		}
	}



if (ie == true) {
	window.setTimeout('check_switch()',100)
	}