function GetElement(parentobj,id)
{
var obj
if(!parentobj) return null;
if(parentobj.getElementById)
{
obj=parentobj.getElementById(id);
}else if(parentobj.all)
{
obj=parentobj.all[id];
}else if(parentobj.layers)
{
obj=parentobj.layers[id];
}
return obj;
}

function JsHTMLStr(str)
{
if(str!="")
{
str=str.replace(/ /gi," ");
str=str.replace(/>/gi,">");
str=str.replace(/</gi,"&lt;");
}
return str;
}

function intNum(f)
{
var pointAt;
var obNum;
obNum="";
str=f + "";
pointAt=str.indexOf(".");
if(pointAt>0)
{
	for(i=0;i<pointAt;i++)
		obNum+=str.charAt(i);
	obNum=obNum-0+1;
}
else
	obNum=str;
return obNum;
}

//========================= 设置字体大中小 start =============
	function doZoom(size){
		var artibody = document.getElementById('artibody');
		if(!artibody){
			return;
		}
		var artibodyChild = artibody.childNodes;
		artibody.style.fontSize = size + 'px';
		//再对artibody div内的直接html节点设置fontSize属性
		for(var i = 0; i < artibodyChild.length; i++){
			if(artibodyChild[i].nodeType == 1){
				artibodyChild[i].style.fontSize = size + 'px';
			}
		}		
	}
//========================= 设置字体大中小 end =============
function chkUserName(code)
{   var strangCode = "abcdefghijklmnopqrstuvwxyz0123456789_";
    var temp;
    for (var i = 0; i<code.length; i++ )
    {
        temp = code.substring(i,i+1);
        if (strangCode.indexOf(temp) ==-1)
        {
            return (false);
        }
    }
}

function chkPassWord(str)
{
  var strSource ="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ`~!@#$%^&*()_-+=|\}{[]:;'?/>.,<";
  var ch;
  var i;
  var temp;
  
  for (i=0;i<=(str.length-1);i++)
  {
  
    ch = str.charAt(i);
    temp = strSource.indexOf(ch);
    if (temp==-1) 
    {
     return 0;
    }
  }
  if (strSource.indexOf(ch)==-1)
  {
    return 0;
  }
  else
  {
    return 1;
  } 
}

function chkTelephone(Tel)
{
	var i,j,strTemp;
	strTemp="0123456789-+#()";
	if (Tel.length < 7 )
	{
	 return 0;
	 }
	for (i=0;i<Tel.length;i++)
	{
		j=strTemp.indexOf(Tel.charAt(i));	
		if (j==-1)
		{
			return 0;
		}
	}
	return 1;
}

function chkMobile(m)
{
 var mobile=m;
 var reg0=/^13\d{9}$/;   //130--139。至少7位
 var reg1=/^15\d{9}$/;  //联通150-159。至少7位
 var my=false;
 if (reg0.test(mobile))my=true;
 if (reg1.test(mobile))my=true;
 return my;
}


function chkEmail(a)
{ 
	if(!a.match(/^[\w\.\-]+@([\w\-]+\.)+[a-z]{2,4}$/ig))
	{
		return false;
		}
		return true;
		
} 
function chkNumeric(NUM)
{
	var i,j,strTemp;
	var PointNum;
	PointNum=0
	strTemp="0123456789.";
	if(NUM=="")return 0;
	for (i=0;i<NUM.length;i++)
	{
		j=strTemp.indexOf(NUM.charAt(i));	
		if (j==-1)
		{
			return 0;
		}
		if(j==10)
		{
			PointNum=PointNum+1;
		}
		
	}
	if(PointNum>1)
	{
		return 0;
	}
	return 1;
}

function chkInteger(NUM)
{
	var i,j,strTemp;
	strTemp="0123456789";
	if(NUM=="")return 0;
	for (i=0;i<NUM.length;i++)
	{
		j=strTemp.indexOf(NUM.charAt(i));	
		if (j==-1)
		{
			return 0;
		}
	}
	return 1;
}

function DrawImage(ImgD,x,y){
	var flag=false;
   var image=new Image();
   image.src=ImgD.src;
   if(image.width>0 && image.height>0){
    flag=true;
    if(image.width/image.height>= x/y){
     if(image.width>x){  
     ImgD.width=x;
     ImgD.height=(image.height*x)/image.width;
     }else{
     ImgD.width=image.width;  
     ImgD.height=image.height;
     }
     //ImgD.alt=image.width+"x"+image.height;
     }
    else{
     if(image.height>y){  
     ImgD.height=y;
     ImgD.width=(image.width*y)/image.height;     
     }else{
     ImgD.width=image.width;  
     ImgD.height=image.height;
     }
     //ImgD.alt=image.width+"x"+image.height;
     }
    }
}

function chkImageSize(ImgD,x,y){
   var image=new Image();
   image.src=ImgD;
   if(image.width>x || image.height>y){
		alert("图片的宽不能大于"+x+"像素;高不能大于"+y+"像素.");
		return false;
	}
	return true;
}

function chkSafe(a)
{
	fibdn = new Array ("'",'\\',"/");
	i=fibdn.length;
	j=a.length;
	for (ii=0;ii<i;ii++)
	{
		for (jj=0;jj<j;jj++)
		{	
			temp1=a.charAt(jj);
			temp2=fibdn[ii];
			if (temp1==temp2)
			{
				//alert("You have entered invalid char!");
				return 0;
			}
		}
	}
	return 1;
}

function chkSpc(a)
{

	var i=a.length;
	if (i==0)
	{
		return 0;
	}

	for (j=0;(j<i) && (a.charAt(j)==' ');j++)
	{
	
	}
	if (i==j)
	{
		return 0;
	}
	else
	{
		return 1;
	}
}

// 是否有效的扩展名
function IsExt(url, opt){
	var sTemp;
	var b=false;
	if(url=="")
	{
		return b;}
	var s=opt.toUpperCase().split("|");
	for (var i=0;i<s.length ;i++ ){
		sTemp=url.substr(url.length-s[i].length-1);
		sTemp=sTemp.toUpperCase();
		s[i]="."+s[i];
		if (s[i]==sTemp){
			b=true;
			break;
		}
	}
	return b;
}

function chkLength(strTemp)
{
	var i,sum;
	sum=0;
	for(i=0;i<strTemp.length;i++)
	{
		if ((strTemp.charCodeAt(i)>=0) && (strTemp.charCodeAt(i)<=255))
			sum=sum+1;
		else
			sum=sum+2;
	}
	return sum;
}

function strangecode(code)
{   var strangCode = "~`!@#$%^&*()_+=-|\'/？,，。.<>";
    var temp;
    for (var i = 0; i<code.length; i++ )
    {
        temp = code.substring(i,i+1);
        if (strangCode.indexOf(temp) !=-1)
        {
            return (false);
        }
    }
}

function jtrim(str)
{     while ((str.charAt(0)==" ")||(str.charAt(0)=="　"))
          {str=str.substr(1);}      
     while (str.charAt(str.length-1)==" ")
         {str=str.substr(0,str.length-1);}
     return(str);
}

	function regInput(obj, reg, inputStr)
	{
		var docSel	= document.selection.createRange()
		if (docSel.parentElement().tagName != "INPUT")	return false
		oSel = docSel.duplicate()
		oSel.text = ""
		var srcRange	= obj.createTextRange()
		oSel.setEndPoint("StartToStart", srcRange)
		var str = oSel.text + inputStr + srcRange.text.substr(oSel.text.length)
		return reg.test(str)
	}

function showDialog(url)
{
 showModalDialog(url,window,'dialogWidth:777px;dialogHeight:400px;help:no;scroll:no;status:no');
}