function setheight(type){
var sthobjb;
sthobj=document.body;

	var objL=sthobj.childNodes.length;
	var temprumA1=0;
	var temprumA2=0;
	var temprumA3=0;
	var temprumb1=0;
	var temprumb2=0;
	var temprumb3=0;
	
	for(var i=0;i<objL;i++){
		if(sthobj.childNodes[i].className=="clum"){
			
			var objL2=sthobj.childNodes[i].childNodes.length;
			for(var ii=0;ii<objL2;ii++){
				
				if(sthobj.childNodes[i].childNodes[ii].tagName == "DIV"){
					//if(sthobj.childNodes[i].childNodes[ii].className=="clumA BorCoOrange"){
					if(sthobj.childNodes[i].childNodes[ii].className.split("clumA").length>1){
						temprumA1=temprumA1+","+sthobj.childNodes[i].childNodes[ii].offsetHeight;
						temprumA2=temprumA2+","+i;
						temprumA3=temprumA3+","+ii;
					}
					//if(sthobj.childNodes[i].childNodes[ii].className=="clumb BorCoOrange"){
					if(sthobj.childNodes[i].childNodes[ii].className.split("clumb").length>1){
						temprumb1=temprumb1+","+sthobj.childNodes[i].childNodes[ii].offsetHeight;
						temprumb2=temprumb2+","+i;
						temprumb3=temprumb3+","+ii;
					}
				}
			}
		}
	}
	
	var tempArrA1=temprumA1.split(",");
	var tempArrA2=temprumA2.split(",");
	var tempArrA3=temprumA3.split(",");
	var tempArrb1=temprumb1.split(",");
	var tempArrb2=temprumb2.split(",");
	var tempArrb3=temprumb3.split(",");
	
	for(var iii=1;iii<tempArrA1.length;iii++){
		var tempheightA=parseInt(tempArrA1[iii]);
		var tempheightb=parseInt(tempArrb1[iii]);
			
		if (iii>1){
			
			if (tempheightA>tempheightb){
				var nodes1=tempArrb2[iii];
				var nodes2=tempArrb3[iii];
				tempheightb=tempheightA-14;
				sthobj.childNodes[nodes1].childNodes[nodes2].style.height=tempheightb+"px";
			}
			else{
				var nodes1=tempArrA2[iii];
				var nodes2=tempArrA3[iii];
				tempheightA=tempheightb-14;
				sthobj.childNodes[nodes1].childNodes[nodes2].style.height=tempheightA+"px";
			}
		}
		else if(type==0){
			
			if (tempheightA>tempheightb){
				var nodes1=tempArrb2[iii];
				var nodes2=tempArrb3[iii];
				tempheightb=tempheightA-14;
				sthobj.childNodes[nodes1].childNodes[nodes2].style.height=tempheightb+"px";
			}
			else{
				var nodes1=tempArrA2[iii];
				var nodes2=tempArrA3[iii];
				tempheightA=tempheightb-14;
				sthobj.childNodes[nodes1].childNodes[nodes2].style.height=tempheightA+"px";
			}
		}
		else if(type==1){
			
			if (tempheightA>tempheightb+294){
				var nodes1=tempArrb2[iii];
				var nodes2=tempArrb3[iii];
				tempheightb=tempheightA-308;
				sthobj.childNodes[nodes1].childNodes[nodes2].style.height=tempheightb+"px";
			}
			else{
				var nodes1=tempArrA2[iii];
				var nodes2=tempArrA3[iii];
				tempheightA=tempheightb+280;
				sthobj.childNodes[nodes1].childNodes[nodes2].style.height=tempheightA+"px";
			}
		}
		else if(type==2){
			
			if (tempheightA>tempheightb+316){
				var nodes1=tempArrb2[iii];
				var nodes2=tempArrb3[iii];
				tempheightb=tempheightA-292;
				sthobj.childNodes[nodes1].childNodes[nodes2].style.height=tempheightb+"px";
			}
			else{
				var nodes1=tempArrA2[iii];
				var nodes2=tempArrA3[iii];
				tempheightA=tempheightb+265;
				sthobj.childNodes[nodes1].childNodes[nodes2].style.height=tempheightA+"px";
			}
		}
	}
}

	function doZoom(size){
		document.getElementById('zoom').style.fontSize=size+'px';
	}
			  function CheckPl(obj)
		  {
		  if(obj.saytext.value=="")
		  {
		  alert("您没什么话要说吗？");
		  obj.saytext.focus();
		  return false;
		  }
		  return true;
		  }