function emailCheck(a){var b=1;var c=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;var d=/^(.+)@(.+)$/;var e="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";var f="\[^\\s"+e+"\]";var g="(\"[^\"]*\")";var h=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;var j=f+'+';var k="("+j+"|"+g+")";var l=new RegExp("^"+k+"(\\."+k+")*$");var m=new RegExp("^"+j+"(\\."+j+")*$");var n=a.match(d);if(n==null){return false}var o=n[1];var p=n[2];for(i=0;i<o.length;i++){if(o.charCodeAt(i)>127){return false}}for(i=0;i<p.length;i++){if(p.charCodeAt(i)>127){return false}}if(o.match(l)==null){return false}var q=p.match(h);if(q!=null){for(var i=1;i<=4;i++){if(q[i]>255){return false}}return true}var r=new RegExp("^"+j+"$");var s=p.split(".");var t=s.length;for(i=0;i<t;i++){if(s[i].search(r)==-1){return false}}if(b&&s[s.length-1].length!=2&&s[s.length-1].search(c)==-1){return false}if(t<2){return false}return true}