function GetScript(url, callback, remove){
			var head = document.getElementsByTagName('head')[0];
			var script = document.createElement('script');
			script.type = 'text/javascript';
			script.src = url;
			if(callback !== false){
				var func = (function(h, s, c, r){
					return function(){
						if(c !== undefined){
							c();
						}
						if(r === undefined || r === true){
							h.removeChild(s);
						}
					};
				})(head, script, callback, remove);
				script.onreadystatechange = (function(f){
					return function(){
						if(this.readyState === 'loaded' || this.readyState === 'completed'){
							f();
						}
					};
				})(func);
				script.onload = func;
			}
			head.appendChild(script);
		}
		function addEvent(evt, func, obj){
			if(obj.attachEvent) obj.attachEvent('on' + evt, func);
			else if(obj.addEventListener) obj.addEventListener(evt, func, false);
		}
		function UpdateHelpful(id, help){
			
			getHelp = 'no'
			if(help)
				getHelp = 'yes';
			GetScript('https://www.kingwebtools.com/kvm_switches/kwm_qa_system/updatehelpful.php?id='+id+'&help='+getHelp, false, true);
			
			var he = document.getElementById('helpful' + id);
			var un = document.getElementById('unhelpful' + id);
			var lhe = document.getElementById('linkhelpful' + id);
			var lun = document.getElementById('linkunhelpful' + id);
			var newNum = 0;
			if(help){
				he.style.color = 'green';
				newNum = parseInt(he.innerHTML) + 1;
				he.innerHTML = newNum;
			}
			else{
				un.style.color = 'red';
				newNum = parseInt(un.innerHTML) + 1;
				un.innerHTML = newNum;
			}
			lhe.href = 'javascript:void(0)';
			lun.href = 'javascript:void(0)';
			
		}
		var expandInt = 0;
		var expandTotal = 0;
		function QAExpandInit(){
			var o = document.getElementById('kwm_question');
			QAInputFocus(o);
			expandTotal = o.offsetHeight;
			if(document.getElementById('kwm-qa-submit-form').offsetHeight < 140){ // start the drop-down animation
				expandInt = setInterval(QAExpand, 40);
			}
		}
		function QAExpand(){
			var o = document.getElementById('kwm-qa-submit-form');
			if(expandTotal >= 140){
				var finalHeight = 140;
				if(isIE())
					finalHeight += 20;
				o.style.height = finalHeight + 'px';
				clearInterval(expandInt);
				return;
			}
			expandTotal += 10;
			o.style.height = expandTotal + 'px';
		}
		function QAInputBlur(o){
			if(o.value == ''){
				o.value = o.defaultValue;
				o.style.color = '#909090';
			}
		}
		function QAInputFocus(o){
			if(o.defaultValue == o.value){ // clear out the font and set to black if empty
				o.style.color = '#000000';
				o.value = '';
			}
		}
		// Found function -- returns tallest height of the three possible height members
		function getElemHeight(D) {
			return Math.max(
				Math.max(D.scrollHeight),
				Math.max(D.offsetHeight),
				Math.max(D.clientHeight)
			);
		}
		function isIE(){
			return /msie/i.test(navigator.userAgent) && !/opera/i.test(navigator.userAgent);
		}
		var kwm_read_qas_text = 'Read Questions and Answers';
		var kwm_write_qa_text = 'Ask a question';
		var kwm_folder = 'kvm_switches';
	document.write('		<div id="kwm_qaouter">			<div id="qawrapper" class="qa-wrapper" >		<link href="https://www.kingwebtools.com/kvm_switches/kwm_qa_system/review-style.css" type="text/css" rel="stylesheet" />		<scr' + 'ipt type="text/javascript" src="https://www.kingwebtools.com/kvm_switches/kwm_qa_system/review-script.js"><\/scr' + 'ipt><table border="0" cellspacing="0" cellpadding="0" id="writeqas">		<tr>			<td>				<div style="font-size: 10px;" id="submit_qa_form">					<form action="javascript:SubmitQa(\'kvm_switches\');" name="qa_form" id="qa_form">						<div id="kwm-qa-header">Have a question about this product? Ask here!</div>						<div id="kwm-qa-submit-form">							<div id="kwm-qa-input-question">								<input type="text" onfocus="QAExpandInit();" onblur="QAInputBlur(this);" name="kwm_question" id="kwm_question" value="Ask Your Question Here" />							</div>							<div class="kwm-qa-input-field">								<div class="kwm-qa-input-header">Your contact info is kept private.</div>								<input type="text" name="qa_your_name" id="qa_your_name" value="Name" onblur="QAInputBlur(this);" onfocus="QAInputFocus(this);" />								<input type="text" name="qa_your_email" id="qa_your_email" value="Email" onblur="QAInputBlur(this);" onfocus="QAInputFocus(this);" />								<div class="kwm-qa-clear"></div>							</div>							<div class="kwm-qa-clear"></div>							<div><input type="image" src="https://www.kingwebtools.com/kvm_switches/kwm_qa_system/images/submitrounded.gif" name="submit" style="margin-top: 10px;"></div>						</div>						<input type="hidden" id="qa_item_name" name="qa_item_name" value="">						<input type="hidden" id="qa_kwm_item_id" name="qa_kwm_item_id" value="av4pro-dvi-us">						<input type="hidden" id="qa_kwm_item_code" name="qa_kwm_item_code" value="" />					</form>					</div>			</td>		</tr></table><div id="qas-thank-you" style="display: none;"></div>			<table border="0" cellspacing="0" cellpadding="0" id="readqas" style="margin-bottom: 10px;">				<tr>					<td valign="top" class="kwm-qa-qablock">						<div class="kwm-qa-question">							I would like to use with a tower and two or three hp laptop docks (8740W Laptop, MZ222UT#ABA Advanced Docking Station with Hard-drive). What procedure would be necessary to dock or remove one of the laptops when everything else is connected and running?						</div>						<div class="kwm-qa-answer">							Thank you for your inquiry,<br /><br />For consistent Enumerated USB switching and video EDID (essentially video resolution and frequency settings), Adder recommends to disconnect power from the AV4PRO-DVI and the re-connect it after changing user console or computer interface (in this case, connecting / disconnecting laptops). That is all you need to do; During the power up, the KVM will automatically ping and configure each attached device for use. <br /><br />Please refer to the <a href=\'http://42u.com/pdf/AV4PRO-DVI_Manual_v1-1b.pdf\' target=\'_blank\'>Adder AV4PRO-DVI Manual</a> for further information on configuring and operating the unit.<br /><br /><i>Note, it may also be possible for your to swap-out the laptops without power cycle - see below for procedure. However, this second procedure is hypothetical and the AV4PRO-DVI is not designed for \'Hot-Swapping\'; We are unable to guarantee this method to work at all, or without any loss in functionality.<ol><li>Switch ports to a source you are not disconnecting,</li><li>Swap-out the laptop</li><li>Switch back to the original port. This switching step is needed for initializing the Enumerated USB.</li><li>Now you can click \'F\' and then \'2\' to refresh the display EDID information to match the video to the source. If the laptops are the same, using the \'stored EDID\' feature by clicking \'F\' and then \'3\', instead of the previous \'refresh EDID\', may also help you in quickly restoring the video settings.</li></ol>.</i>						</div>						<div class="kwm-qa-helpful">							100% of 1 people found this helpful. Was this helpful to you? 				<a href="javascript:UpdateHelpful(3663, true);" id="linkhelpful3663">Yes</a>(<span id="helpful3663">1</span>) | 				<a href="javascript:UpdateHelpful(3663, false);" id="linkunhelpful3663">No</a>(<span id="unhelpful3663">0</span>)									</div>					</td>				</tr>				<tr>					<td valign="top" class="kwm-qa-qablock">						<div class="kwm-qa-question">							How do you get 2 USB (keyboard and mouse) to 1 USB type b?						</div>						<div class="kwm-qa-answer">							Thank you for your inquiry,<br /><br />To pass the keyboard and mouse signals from the user station to the source PCs, you connect a USB A-to-B cable from the KVM switch to each of the source PCs (the B-ends into the KVM switch, and A-ends into the computer). The cleanest way to do this is to use <a href=\'https://www.kvm-switches-online.com/vscd3.html\'>Adder\'s USB + DVI combo KVM cables</a> which include connections for the video and USB.<br /><br />On the user station side, you simply plug in the cables from your keyboard and mouse into the KVM switch user station ports.						</div>						<div class="kwm-qa-helpful">							100% of 1 people found this helpful. Was this helpful to you? 				<a href="javascript:UpdateHelpful(4327, true);" id="linkhelpful4327">Yes</a>(<span id="helpful4327">1</span>) | 				<a href="javascript:UpdateHelpful(4327, false);" id="linkunhelpful4327">No</a>(<span id="unhelpful4327">0</span>)									</div>					</td>				</tr></table></div></div>');document.getElementById('kwm-sr').style.display = 'none';