JSTR={between:function(v,l,h){if(v<=h&&v>=l)
return true;return false;},isnum:function(v){var s=new String(v);for(i=0;i<s.length;i++)
if(isNaN(parseInt(s.charAt(i))))
return false;return true;},exist:function(s,m){for(i=0;i<s.length;i++)
if(m.indexOf(s.charAt(i))<0)
return false;return true;},toint:function(s){if(!JSTR.isnum(s))
return 0;if(s.charAt(0)=='0')
return JSTR.toint(s.substring(1,s.length));else
if(s.length>0)
return parseInt(s);else
return(0);},count:function(s,m){var c=0;for(i=0;i<s.length;i++)
if(s.charAt(i)==m)
c++;return c;},trim:function(s){return s.replace(/^\s+|\s+$/g,'');},empty:function(s){return((s==null)||(s.length==0))},mark:function(s,m){for(i=0;i<m.length&&s.indexOf(m.charAt(i))<0;i++);return(i<m.length)?false:true;},numeric:function(s){if(JSTR.empty(s)==false){var renumeric=/^[a-zA-Z0-9]+$/;return renumeric.test(s);}},isnumber:function(nb){var ptn=/^[0-9]+$/;var nb=JSTR.trim(nb);if(!ptn.test(nb))return false;return true;},isvalid:function(s){if(JSTR.empty(s)==false){var valid="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_";var temp;for(var i=0;i<s.length;i++){temp=""+s.substring(i,i+1);if(valid.indexOf(temp)=="-1")return false;}
return true;}},isusername:function(us){var ptn=/^[a-z][a-z0-9_-]{2,30}$/i;if(!ptn.test(us))return false;return true;},isphone:function(phn){var ptn=/^\+?[0-9 ()-.]+[0-9.]$/;var tel=JSTR.trim(phn);if(!ptn.test(tel))return false;return true;},isemail:function(v){if(JSTR.empty(v))return true;if(v.indexOf(" ")>=0)return false;var state,c,username,domain,amountOfDot,i;state=1;username='';domain='';amountOfDot=0;for(i=0;i<v.length;i++){c=v.charAt(i);if(state==1){if(c=="<"||c==">"||c=="("||c==")")
return false;else
if(c=="@")
if(username=='')
return false;else
state=3;username+=c;}else
if(state==3){if((c>="0"&&c<="9")||(c>="A"&&c<="Z")||(c>="a"&&c<="z")||c=="_"||c=="-");else
if(c==".")
if(domain==''||domain.charAt(domain.length-1)=='.')return false;else amountOfDot++;else return false;domain+=c;}}
if(state!=3)return false;if(domain==''||domain.charAt(domain.length-1)=='.')return false;if(amountOfDot<1)return false;return true;},unicode:function(is){for(i=0,os='';i<is.length;){if(is.charCodeAt(i)==38){if(is.charCodeAt(i+1)==35){p=is.indexOf(';',i+2);if(p!=-1){if(p-i<=7){if(isFinite(is.substr(i+2,p-i-2))){os=os.concat(String.fromCharCode(is.substr(i+2,p-i-2)));i=p+1;continue;}}}}}
os=os.concat(is.charAt(i));i++;}
return os;},setunicode:function(is){for(i=0,os='';i<is.length;i++){j=is.charCodeAt(i);if(j<32||j>127||j==34||j==39){os=os.concat('&#').concat(j).concat(';');}else{os=os.concat(is.charAt(i));}}
return os;},split:function(ss,aa){st=0;kk=0;arr=new Array(aa+1);for(ii=0;ii<chuoi.length;ii++){if(ss.charAt(ii)=='|'){arr[kk]=JSTR.setunicode(ss.substring(st,ii));st=ii+1;kk++;}}
arr[kk]=JSTR.setunicode(ss.substring(st,ss.length));return arr;},replace:function(sc,so,sn){var ps=0;while((ps=sc.indexOf(so,ps))>=0){sc=sc.substring(0,ps)+sn+sc.substring(ps+so.length);ps+=sn.length;}
return sc;},aceptImage:function(fln){var lfl=Array("jpg","gif","bmp","swf","png");var exf=(fln.substring((fln.lastIndexOf(".")+1),fln.length)).toLowerCase();for(var ie=0;ie<lfl.length;ie++){if(exf==lfl[ie])
return true;}
return false;},aceptVideo:function(fln){var lfl=Array("flv");var exf=(fln.substring((fln.lastIndexOf(".")+1),fln.length)).toLowerCase();for(var ie=0;ie<lfl.length;ie++){if(exf==lfl[ie])
return true;}
return false;},aceptAudio:function(fln){var lfl=Array("mp3");var exf=(fln.substring((fln.lastIndexOf(".")+1),fln.length)).toLowerCase();for(var ie=0;ie<lfl.length;ie++){if(exf==lfl[ie])
return true;}
return false;},open:function(fl,w,h){w+=50;h+=50;if(w>780)w=780;if(h>600)h=600;window.open(fl,"_full","scrollbars=2, resizable=yes, width="+w+", height = "+w);}}