function checkboxlimit(checkgroup,limit){var checkgroup=checkgroup
var limit=limit
for(var i=0;i<checkgroup.length;i++){checkgroup[i].onclick=function(){var checkedcount=0
for(var i=0;i<checkgroup.length;i++)
checkedcount+=(checkgroup[i].checked)?1:0
if(checkedcount>limit){alert("You can only select a maximum of "+limit+" checkboxes")
this.checked=false}}}}