//显示隐藏div，该函数应用于checkbox与div动态关联
//用户选中checkbox后div显示，取消选中时div隐藏
//输入参数：checkbox表单元素，div元素
function linkdisplay(checkbox,divID)
{
  if(checkbox.checked)
  {
    divID.style.display="block";
  }
  else
    divID.style.display="none";
}

function exchangeImg(elm,pic1,pic2){
   if(elm.src == "pic1"){
   	elm.src = pic2;   	
   }else{
   	elm.src = pic1;
   }
}

//获得select元素当前选中的值
//输入参数：select表单元素
//返回：字符串
//get the value from select that selected
function getSelectValue(selobj)
{
  if(selobj.options.length == 0 || selobj.selectedIndex==-1)
    return null;
  var str;
  str = selobj.options[selobj.selectedIndex].value;
  return str;
}
//获得select元素当前选中的文本
//输入参数：select表单元素
//返回：字符串
//get the text from select that selected
function getSelectText(selobj)
{
  if(selobj.options.length == 0|| selobj.selectedIndex==-1)
    return null;
  var str;
  str = selobj.options[selobj.selectedIndex].text;
  return str;
}

function getSelectValueArray(selobj)
{
  var selNums = 0;
  for(var i=0;i<selobj.options.length;i++)
    if(selobj.options[i].selected) selNums++;
  var options = new Array(selNums);
  var n = 0;
  for(var i=0;i<selobj.options.length;i++)
    if(selobj.options[i].selected) options[n++]=selobj.options[i].value;
  return options;
}
//选中select指定选项，如果不存在不做处理
function selectedOne(selobj, value)
{
  var len = selobj.options.length;
  if(len == 0)
    return false;
  for(i=0;i<len;i++){
    if(selobj.options[i].value == value)
      selobj.options[i].selected = true;
  }
  return true;
}


//显示/隐藏div元素
//输入参数：div元素
function display(selobj){
  if(selobj.length==null)
    selobj.style.display = "block";
  else for (var i=0;i<selobj.length;i++)
    selobj[i].style.display = "block";
}

function hidden(selobj){
  if(selobj.length==null)
    selobj.style.display = "none";
  else for (var i=0;i<selobj.length;i++)
    selobj[i].style.display = "none";
}

//在fmain页面上显示帮助页面
//系统在设计中提供在线帮助，在线帮助为一可以移动的div，在fmain页面上，显示帮助的联接在funcmenu页面上，
//用户点击funcmenu页面上的联接，从而显示fmain页面上的div
//输入参数：frame页面名称，帮助页面
//show help
function showhelp(framename,htmlpage){
  window.parent.frames[framename].document.all["helpiframe"].src="/oa/help/" + htmlpage;
  window.parent.frames[framename].show();
  return false;
}
//鼠标移动经过tr时变色
//var rowbgcolor = '#ffffff';
function mouseover(sel){
 var len = sel.childNodes.length;
 for(i=0;i<len;i++){
   var mytd = sel.childNodes[i];
   if(mytd.rowSpan > 1 || mytd.colSpan > 1){
   }else{
     mytd.mybgcolor = mytd.style.backgroundColor;
     mytd.style.backgroundColor='#FFB648';
   }
 }	
// rowbgcolor = sel.style.backgroundColor;
// sel.style.backgroundColor='#FFB648';
}
function mouseout(sel){ 
 var len = sel.childNodes.length;
 for(i=0;i<len;i++){
   var mytd = sel.childNodes[i];
   if(mytd.mybgcolor != undefined && mytd.mybgcolor != null){
     mytd.style.backgroundColor=mytd.mybgcolor;
     mytd.mybgcolor=null;
   }
 }
// sel.style.backgroundColor=rowbgcolor; 
}


//特殊按键处理，包括回车键，退格键，Alt+左右箭头，Ctrl+N
function keyDown(DnEvents){
  var k = window.event.keyCode;
  if(k == 9){
    element = window.event.srcElement;
    var elmid = element.id;
    if(elmid != null && elmid != undefined){
	if(elmid == '_tsedit_div_Text_Elm' || elmid == '_tsedit_div_Text_Integer_Elm' ||
	   elmid == '_tsedit_div_Text_Double_Elm' || elmid == '_tsedit_div_TextArea_Elm' ||
	   elmid == '_tsedit_div_Date_Elm3' || elmid == '_tsedit_div_Time_Elm3' ||
	   elmid == '_tsedit_div_FullTime_Elm6' || elmid == '_tsedit_div_IPAddress_Elm4' ||
	   elmid == '_tsedit_div_ComboBox_Elm_text_'){
	   //return _table_edit_returnHandler3();
	   return false;
	}	
    }
  }

  if(k == 13){
    element = window.event.srcElement;
    if(typeof(returnHandler) == 'function'){
  	if(returnHandler()){
     	  return false;
  	}
    }
    type = element.type;
    var elmid = element.id;
    if(type == 'text' || type == 'select-one' || type == 'select-multiple'
      || type == 'checkbox' || type == 'radio' || type == 'password' || type == 'file'){
    	if(typeof element.form == 'object' && element.form != null){
    	   sel = element.form[(getIndex(element)+1)%element.form.length];
    	   while(sel.type == 'hidden' 
    	         || (sel.offsetWidth == 0 && sel.offsetHeight == 0 && 
    	             !(sel.name != undefined && 
    	               sel.name.lastIndexOf('_text_') > 0 && 
    	               sel.name.lastIndexOf('_text_') == sel.name.length - 6))
    	         || (sel.name != undefined && sel.name.indexOf('seltext_') == 0)){
    	      sel = sel.form[(getIndex(sel)+1)%element.form.length];
    	    }
 	    try{
 	      //is combobox
 	      if(sel.name != undefined && 
    	               sel.name.lastIndexOf('_text_') > 0 && 
    	               sel.name.lastIndexOf('_text_') == sel.name.length - 6){
    	         var cbid = sel.name.substring(0,sel.name.lastIndexOf('_text_'));
                 var elms = document.all[sel.id];
                 if(elms.length == undefined){
		   if(sel.style.display != 'block'){                   
		      document.all[cbid+'_tips_'].style.display = 'none';
	              sel.style.display = 'block';
                   }
                 }else{//iterate,more elms
                   var i = 0;
                   for(;i<elms.length;i++){
      	             if(elms[i] == sel) break;
                   }
		   if(sel.style.display != 'block'){
		      document.all[cbid+'_tips_'][i].style.display = 'none';
	              sel.style.display = 'block';
		   }	 
                 } 
                 sel.focus();	        
    	      }else{
   	        sel.focus();
    	      }    	        
 	    }catch(e){}
	    return false;
      }
    }
  }
  if(k == 8){
    if(window.event.srcElement.type != 'text' 
       && window.event.srcElement.type != 'password' 
       && window.event.srcElement.type != 'file' 
       && window.event.srcElement.type != 'textarea'){  
     window.event.returnValue = false;     
    }else if(window.event.srcElement.readOnly){
     window.event.returnValue = false;     
    }
  }
  if((k == 37 || k == 39) && window.event.altKey){
     window.event.returnValue = false;
  }
  if(k == 78 && window.event.ctrlKey){
     window.event.returnValue = false;
  } 
}

document.onkeydown = keyDown;
function getIndex(element){
   var index=-1,i=0,found=false;
   while(i<element.form.length && index == -1)
      if(element.form[i] == element)
      	index = i;
      else
      	i++;
   return index;
}


//4舍5入后取i位小数
function selectedPoint(value,i){
  return parseInt(value * Math.pow(10, i)+0.5 ) / Math.pow(10, i) ;
}

function trim(str){
  if(str==null) return "";
  return str.replace(/(^\s*)|(\s*$)/g, "");
}
//亲子鉴定，elm2是不是elm的长辈
function isChild(elm,elm2){
  if(elm==null||elm2==null) return false;
  if(elm==elm2) return true;//UPD 091201
  while(elm.parentElement!=null){
    elm=elm.parentElement;
    if(elm==elm2) return true;
  }
  return false;
}

function trim(str){ //去掉一个字符串前后的空格
  return rtrim(ltrim(str));
}

function ltrim(str){ //去掉一个字符串前面的空格
	var whitespace = new String(" \t\n\r");
	var s = new String(str);
	var j=0, i = s.length;

        while (j < i && whitespace.indexOf(s.charAt(j)) != -1){
		j++;
	}
	s = s.substring(j, i);
	return s;
}

function rtrim(str){ //去掉一个字符串后面的空格
	var whitespace = new String(" \t\n\r");
	var s = new String(str);
	var i = s.length - 1;

        while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1){
		i--;
	}
	s = s.substring(0, i+1);
	return s;
}

function validateEmail(email){
   var reg = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
   return reg.test(email);
}

function encodeUrl(sStr){
  return sStr.toString().replace(/\%/g,'%25').replace(/\+/g,'%2B').replace(/\"/g,'%22').replace(/\'/g,'%27').replace(/\//g,'%2F').replace(/\\/g,'%5C').replace(/\#/g,'%23').replace(/\&/g,'%26').replace(/\r\n/g,'%0D%0A');
}