Una pregunta sobre javascript

if (_FormName=="")

_FormName = "todos"

var _DsArr = _Ds.split("|")

var _Ds1,_Ds2,_Ds3

var _Ds1 = _DsArr[0]

var _Ds2 = (_DsArr.length>1)?_DsArr[1]:_DsArr[0]

var _Ds3 = (_DsArr.length>2)?_DsArr[2]:_DsArr[0]

var _SNameArr = _SName.split("|")

var _SName1,_SName2,_SName3

var _SName1 = _SNameArr[0]

var _SName2 = (_SNameArr.length>1)?_SNameArr[1]:_SNameArr[0]

var _SName3 = (_SNameArr.length>2)?_SNameArr[2]:_SNameArr[0]

var _SValueArr = _SValue.split("|")

var _SValue1,_SValue2,_SValue3

var _SValue1 = _SValueArr[0]

var _SValue2 = (_SValueArr.length>1)?_SValueArr[1]:_SValueArr[0]

var _SValue3 = (_SValueArr.length>2)?_SValueArr[2]:_SValueArr[0]

if (ShowType==3){

_AllOptionStr = _AllOptionStr. reemplazar(/\(\(/ig,"\(\("+_Ds3+"\^")

_AllOptionStr = _AllOptionStr.replace(/\{\{/ig,"\{\{" +_Ds2+"\(\("+_Ds3+"\*\*")

}

else if(ShowType==2){

_AllOptionStr = _AllOptionStr.replace(/\{\{/ig,"\{\{"+_Ds2+"\(\("+_Ds3+"\*\*"))

}

else if(ShowType==1){

_AllOptionStr = _AllOptionStr.replace(/\(\(/ig,"\(\("+_Ds3+"\^")

}

var AllStr = _Ds1 + "{{"+ _Ds2 + "(("+ _Ds3 +"||"+_AllOptionStr

//alert(AllStr)

var _AR0 = AllStr.split("||");

document.writeln("");

var _AR111 = _Ds2.split("@");

var Tstr11 = _AR111[0]

var Vstr11 = (_AR111.length== 2)?_AR111[ 1]:_AR111[0];

document.writeln("

document.writeln("<\/select>");

document.writeln("