function isset() {
// *     example 1: isset( undefined, true);
// *     returns 1: false
// *     example 2: isset( 'Kevin van Zonneveld' );
// *     returns 2: true
    var a=arguments, l=a.length, i=0;
    
    if (l===0) {
        throw new Error('Empty isset');
    }
     
    while (i!==l) {
        if (typeof(a[i])=='undefined' || a[i]===null) {
            return false;
       } else {
           i++;
        }
    }
    return true;
}
function is_object(){
	var obj = document.getElementById(arguments[0]);
	if (typeof(obj)=='undefined' || obj===null)
		return false;
	return true;	
}
//===============================================================================================//
function parse_str(str,array){var glue1='=',glue2='&',array2=String(str).split(glue2),i,j,chr,tmp,key,value,bracket,keys,evalStr,fixStr=function(str){return urldecode(str).replace(/([\\"'])/g,'\\$1').replace(/\n/g,'\\n').replace(/\r/g,'\\r')};if(!array){array=this.window}for(i=0;i<array2.length;i++){tmp=array2[i].split(glue1);if(tmp.length<2){tmp=[tmp,'']}key=fixStr(tmp[0]);value=fixStr(tmp[1]);while(key.charAt(0)===' '){key=key.substr(1)}if(key.indexOf('\0')!==-1){key=key.substr(0,key.indexOf('\0'))}if(key&&key.charAt(0)!=='['){keys=[];bracket=0;for(j=0;j<key.length;j++){if(key.charAt(j)==='['&&!bracket){bracket=j+1}else if(key.charAt(j)===']'){if(bracket){if(!keys.length){keys.push(key.substr(0,bracket-1))}keys.push(key.substr(bracket,j-bracket));bracket=0;if(key.charAt(j+1)!=='['){break}}}}if(!keys.length){keys=[key]}for(j=0;j<keys[0].length;j++){chr=keys[0].charAt(j);if(chr===' '||chr==='.'||chr==='['){keys[0]=keys[0].substr(0,j)+'_'+keys[0].substr(j+1)}if(chr==='['){break}}evalStr='array';for(j=0;j<keys.length;j++){key=keys[j];if((key!==''&&key!==' ')||j===0){key="'"+key+"'"}else{key=eval(evalStr+'.push([]);')-1}evalStr+='['+key+']';if(j!==keys.length-1&&eval('typeof '+evalStr)==='undefined'){eval(evalStr+' = [];')}}evalStr+=" = '"+value+"';\n";eval(evalStr)}}}