/************************************
*	js模擬Select					*

*	Author:Daviv					*

*	Date:2007-4-28					*

*	Blog:http://www.iwcn.net		*

*	Email:jxdawei#163.com			*
************************************/

var childCreate=false;
var count = 0
function Offset(e)
//取標簽的絕對位置
{
    if (count == 0) {
        if (navigator.appName == "Microsoft Internet Explorer") {
            var t = e.offsetTop;
        }
        else {
            var t = e.offsetTop;
        }
    }
    else {
        if (navigator.appName == "Microsoft Internet Explorer") {
            var t = e.offsetTop-1;
        }
        else {
            var t = e.offsetTop-2;
        }
    }
    if (e.name == "ctl00$ContentPlaceHolder1$DropDownList1") {
        if (navigator.appName == "Microsoft Internet Explorer") {
            var t = e.offsetTop;
        }
        else {
            var t = e.offsetTop;
        }
    }
    count = count + 1
	var l = e.offsetLeft;
	var w = e.offsetWidth;
	var h = e.offsetHeight-2;

	while(e=e.offsetParent)
	{
		t+=e.offsetTop;
		l+=e.offsetLeft;
	}
	return {
		top : t,
		left : l,
		width : w,
		height : h
	}
}

function loadSelect(obj){

	//第一步：取得Select所在的位置
	var offset=Offset(obj);
	//第二步：將真的select隱藏
	obj.style.display="none";

	//第三步：虛擬一個div出來代替select
	var iDiv = document.createElement("div");
		iDiv.id="selectof" + obj.name;
		iDiv.style.position = "absolute";
		iDiv.style.width=offset.width + "px";
		iDiv.style.height=offset.height + "px";
		iDiv.style.top=offset.top + "px";
		iDiv.style.left=offset.left + "px";
		iDiv.style.background="url(Images/select_arrow.gif) no-repeat right 0px ";
		iDiv.style.border="1px solid #00246A";
		iDiv.style.fontSize="12px";
		iDiv.style.lineHeight=offset.height + "px";
		iDiv.style.textIndent="4px";
	document.body.appendChild(iDiv);

	//第四步：將select中默認的選項顯示出來
	var tValue=obj.options[obj.selectedIndex].innerHTML;
	iDiv.innerHTML=tValue;

	//第五步：模擬鼠標點擊
	iDiv.onmouseover=function(){//鼠標移到
		iDiv.style.background="url(Images/select_arrow.gif) no-repeat right 8px;";
	}
	iDiv.onmouseout=function(){//鼠標移走
		iDiv.style.background="url(Images/select_arrow.gif) no-repeat right 8px;";
	}
	iDiv.onclick=function(){//鼠標點擊
		if (document.getElementById("selectchild" + obj.name)){
		//判斷是否創建過div
			if (childCreate){
				//判斷當前的下拉是不是打開狀態，如果是打開的就關閉掉。是關閉的就打開。
				document.getElementById("selectchild" + obj.name).style.display="none";
				childCreate=false;
			}else{
				document.getElementById("selectchild" + obj.name).style.display="";
				childCreate=true;
			}
		}else{
			//初始一個div放在上一個div下邊，當options的替身。
			var cDiv = document.createElement("div");
			cDiv.id="selectchild" + obj.name;
			cDiv.style.position = "absolute";
			cDiv.style.width=offset.width + "px";
			cDiv.style.height=obj.options.length *20 + "px";
			cDiv.style.top=(offset.top+offset.height+2) + "px";			
			cDiv.style.left=offset.left + "px";
			cDiv.style.background="#f7f7f7";
			cDiv.style.border="1px solid #00246A";

			var uUl = document.createElement("ul");
			uUl.id="uUlchild" + obj.name;
			uUl.style.listStyle="none";
			uUl.style.margin="0";
			uUl.style.padding="0";
			uUl.style.fontSize="12px";
			uUl.style.width=offset.width + "px";
			uUl.style.background="#ffffff";
			
			cDiv.appendChild(uUl);
			document.body.appendChild(cDiv);		
			childCreate=true;
			for (var i=0;i<obj.options.length;i++){
				//將原始的select標簽中的options添加到li中
				var lLi=document.createElement("li");
				lLi.id=obj.options[i].value;
				lLi.style.textIndent="4px";
				lLi.style.height="20px";
				
				lLi.style.width=offset.width + "px";
				
				lLi.style.lineHeight="20px";
				lLi.innerHTML=obj.options[i].innerHTML;
				uUl.appendChild(lLi);
			}
			var liObj=document.getElementById("uUlchild" + obj.name).getElementsByTagName("li");
			for (var j=0;j<obj.options.length;j++){
				//為li標簽添加鼠標事件
				liObj[j].onmouseover=function(){
					this.style.background="gray";
					this.style.color="white";
				}
				liObj[j].onmouseout=function(){
					this.style.background="white";
					this.style.color="black";
				}
				liObj[j].onclick=function(){
					//做兩件事情，一是將用戶選擇的保存到原始select標簽中，要不做的再好看表單遞交后也獲取不到select的值了。	
							
					obj.options.length=0;
					obj.options[0]=new Option(this.innerHTML,this.id);
					//同時我們把下拉的關閉掉。
					document.getElementById("selectchild" + obj.name).style.display="none";
					childCreate=false;
					iDiv.innerHTML=this.innerHTML;
					
					gogo(obj);	
				}
			}
		}
	}
}

function gogo(Inobj)
{
    if(Inobj.id=="ctl00_ContentPlaceHolder1_UCL_Page1_DropDownList1"){
        setTimeout('__doPostBack(\'ctl00$ContentPlaceHolder1$UCL_Page1$DropDownList1\',\'\')', 0);
    }
    if(Inobj.id=="ctl00_ContentPlaceHolder1_DropDownList1"){
        setTimeout('__doPostBack(\'ctl00$ContentPlaceHolder1$DropDownList1\',\'\')', 0);
    }
    
    if(Inobj.id=="ctl00_ContentPlaceHolder1_DropDownListR"){
        findPMT();
    }
    
}