function chkMaskINTEGER(field,event){var ns=((document.layers||document.getElementById)&&(!document.all));var ie=document.all;var keySet='0123456789';var actionSet='0,8,13';var keyCode=(ie)?window.event.keyCode:event.which;var key=String.fromCharCode(keyCode);if((keySet.indexOf(key)==-1)&&(actionSet.indexOf(keyCode)==-1)){return false;}else{return true;}}function chkINTEGER(field){var integerValue=parseInt(field.value);if(field.value.length==0||integerValue==0){return true;}else if(integerValue){return true;}else{return false;}}