/**************
Athor:jasyyy
Date:2009-07-16
****************/

//����z-index���
function setIndex(id,tagName){
var list = document.getElementById(id).getElementsByTagName(tagName);
var temp=list.length;
for(i=0;i<list.length;i++){
		list[i].style.zIndex=temp;
		temp--;
	}
}



//������꾭����ʾ����
function setMouseShow(id,tagName,conTagName,className){
var list = document.getElementById(id).getElementsByTagName(tagName);
for(i=0;i<list.length;i++){
		list[i].onmouseover = function(){
			if(this.getElementsByTagName(conTagName)[0]){
				if(className){
						this.className='on';
					}
				this.getElementsByTagName(conTagName)[0].style.display="block";
				}
		}
		list[i].onmouseout = function(){
			if(this.getElementsByTagName(conTagName)[0]){
				if(className){
						this.className='';
					}
				this.getElementsByTagName(conTagName)[0].style.display="none";
				}
		}
	}
}

//��񱳾����л���
function setTrBg(id,tagName, color1, color2) {
  var trs = document.getElementById(id).getElementsByTagName(tagName);
    for (j = 0; j < trs.length; j++) {
      trs[j].style.backgroundColor = (j % 2 == 0) ? color1: color2;
  }
}