function GetQR(){var a=document.getElementById("txtURL").value;a.indexOf("http://")!=0||a.indexOf(".")==-1?(alert("Please enter a valid url"),document.getElementById("txtURL").focus()):(document.getElementById("imgQR").src="http://chart.apis.google.com/chart?cht=qr&chs=140x140&chl="+a,document.getElementById("hlQR").href=a,document.getElementById("imgTick").style.display="block")};