/**
*checkbox的脚本辅助

*/

/**
*obName为checkbox对象的名称
*sp1为checkbox多值之间的分隔符号
*/
	function getCheckboxValue(obName, sp1) {
  		 var checks = document.getElementsByName(obName);
  		 
  		 var result="";
   
  		 for(var i=0;i<checks.length;i=i+1){
   		  if(checks[i].checked){
      		 if(result!==""){
        		 result+=sp1;
      		 }
      		 result+=checks[i].value;
    	  }
  		 }
 	  return result;
	}

/**
*全部选择
*obName checkBox对象的名称

*/
function checkAll(obName) {
   var checks = document.getElementsByName(obName);
   
   for(var i=0;i<checks.length;i=i+1){
     checks[i].checked=true;
   }
   
}

function nocheck(obName){
	var checks = document.getElementsByName(obName);
   
   for(var i=0;i<checks.length;i=i+1){
     checks[i].checked=false;
   }
}

/**
*反选择
*obName checkBox对象的名称

*/
function checkRevert(obName) {
   var checks = document.getElementsByName(obName);
   
   for(var i=0;i<checks.length;i=i+1){
     if(checks[i].checked){
      checks[i].checked=false;
     }else{
      checks[i].checked=true;
     }
   }
   
}