var Valident = {
    "isPhone" :  function(passed){
	    if(passed==""){
		    return false;
	    }
	    var passedVal=trim(passed);
	    for(i=0;i<passedVal.length;i++){
		    if(passedVal.charAt(i)=='-'){
			    if((i!=3&&i!=4)||(i==passedVal.length-1)){
				    return false;
			    }
		    }
		    else if(passedVal.charAt(i)<"0"){
			    return false;
		    }
		    else if(passedVal.charAt(i)>"9"){
			    return false;
		    }
	    }
	    return true;
    },
    "isMail" : function(s){
        var regu = "^(([0-9a-zA-Z]+)|([0-9a-zA-Z]+[_.0-9a-zA-Z-]*[0-9a-zA-Z]+))@([a-zA-Z0-9-]+[.])+([a-zA-Z]{2}|net|NET|com|COM|gov|GOV|mil|MIL|org|ORG|edu|EDU|int|INT)$"
        var re = new RegExp(regu);
        if(s.search(re) != -1){
	        return true;
        }
        else{
	        return false;
	    }
    },
    "isInt" : function(input){
        var regu = "^-?[1-9]\\d*$";
        var re = new RegExp(regu);
        if(s.search(re) != -1){
	        return true;
        }
        else{
	        return false;
	    }
    },
    "isFloat" : function(input){
        var regu = "^[1-9]\\d*(\\.\\d+|)$";
        var re = new RegExp(regu);
	    if(input.search(re) != -1){
		    return true;
	    }
	    else{
		    return false;
		}
	},
	"isDate" : function(str){
      var   datestr   =str;   
      var   lthdatestr=str.length   ;     
      var   tmpy="";   
      var   tmpm="";   
      var   tmpd="";   
      var   status;     
      status=0;     
      var   status1;     
      status1=0;   
        
      if   (datestr=="")   return   true;   
        
      for   (i=0;i<lthdatestr;i++)   {     
      if   (datestr.charAt(i)==   '/')   {     
      status++;     
      }     
        
      }   
      if   (status>2||status==1)   {   
      return   false;     
      }     
      for   (i=0;i<lthdatestr;i++)   {     
      if   (datestr.charAt(i)==   '-')   {     
      status1++;     
      }     
        
      }   
      if   (status1>2||status1==1)   {     
      return   false;     
      }     
        
      status=0;     
      datestr   =   replace(datestr,   "-",   "/")   
        
      if   (lthdatestr==   0)   {   
      return   false;     
      }   
      for   (i=0;i<lthdatestr;i++)   {     
      if   (datestr.charAt(i)==   '/')   {     
      status++;     
      }     
      if   (status>2)   {     
      return   false;     
      }     
        
      if   ((status==0)   &&   (datestr.charAt(i)!='/'))   {     
      tmpy=tmpy+datestr.charAt(i)     
      }     
      if   ((status==1)   &&   (datestr.charAt(i)!='/'))   {     
      tmpm=tmpm+datestr.charAt(i)     
      }     
      if   ((status==2)   &&   (datestr.charAt(i)!='/'))   {     
      tmpd=tmpd+datestr.charAt(i)     
      }     
      }     
      year=new   String   (tmpy);     
      month=new   String   (tmpm);     
      day=new   String   (tmpd)     
      if   ((tmpy.length!=4)   ||   (tmpm.length>2)   ||   (tmpd.length>2))   {     
      return   false;     
      }     
      if   (!((1<=month)   &&   (12>=month)   &&   (31>=day)   &&   (1<=day))   )   {     
      return   false;     
      }     
      if   (!((year   %   4)==0)   &&   (month==2)   &&   (day==29))   {   
      return   false;     
      }   
      if   ((month<=7)   &&   ((month   %   2)==0)   &&   (day>=31))   {     
      return   false;     
      }     
      if   ((month>=8)   &&   ((month   %   2)==1)   &&   (day>=31))   {     
      return   false;     
      }     
      if   ((month==2)   &&   (day==30))   {     
      return   false;     
      }     
      return   true;  
    }
}
function   replace(str,   oldStr,   newStr)   {   
  var   buffer   =   ""   ;   
  var   length   =   oldStr.length;   
  var   beginIndex   =   0;                         
  if   (length   >   0)   {   
  index   =   str.indexOf(oldStr);   
  while   (index   >=   0)   {   
  buffer   =   buffer   +   str.substring(beginIndex,   index);   
  buffer   =   buffer   +   newStr;   
  beginIndex   =   index   +   length;   
  index   =   str.indexOf(oldStr,   beginIndex);   
  }   
  }   
  buffer   =   buffer   +   str.substring(beginIndex);   
  return   buffer   ;   
}
//获得文本框中光标位置.
function GetCaret(input)
{ 
	var pos = 0;
	var s;
	input.focus();
	if(input.tagName.toUpperCase() == 'TEXTAREA') s = input.scrollTop;
	var r = document.selection.createRange();
	var t = input.createTextRange();
	t.collapse(true);
	t.select();
	var j = document.selection.createRange();
	r.setEndPoint("StartToStart",j);
	var str = r.text;
	var re = new RegExp("[\\n]","g");
	str = str.replace(re,"");
	pos = str.length;
	r.collapse(false); 
	r.select();
	if(input.tagName.toUpperCase() == 'TEXTAREA') input.scrollTop = s;
	return pos;
} 
//设置光标位置.
function SetCaret(input,pos) 
{ 
　　var r = input.createTextRange();  
　　r.collapse(true);  
　　r.moveStart('character',pos);  
　　r.select(); 
}