/**

* 常用Tab切换

*/

function onTab(tabid,tabname,tablength,tabclass){

	for(i=0;i<tablength;i++){

		if(tabid == i){

			document.getElementById(""+tabname+"_"+i+"").className = tabclass;

		}else{

			document.getElementById(""+tabname+"_"+i+"").className = '';

		}

	}

	var subname = tabname + "_sub";

	for(j=0;j<tablength;j++){

		if(tabid == j){

			document.getElementById(""+subname+"_"+j+"").style.display = 'block';

		}else{

			document.getElementById(""+subname+"_"+j+"").style.display = 'none';

		}

	}

}