/***** URL PARAMS *****/
searchStr = location.search;
searchStr = searchStr.substring(1, searchStr.length);
searchStr = searchStr.split("&");
for(i=0; i<searchStr.length; i++){
	searchStr[i] = searchStr[i].split("=");
}

function getParamValue(paramName){
	for(i=0; i<searchStr.length; i++){
		if (searchStr[i][0]==paramName) return searchStr[i][1];
	}
	return -1;
}

function setParamValue(paramName, paramValue){
	for(i=0; i<searchStr.length; i++){
		if (searchStr[i][0]==paramName) searchStr[i][1] = paramValue;
	}
}

function getParamString(){
	paramStr = "?";
	for(i=0; i<searchStr.length; i++){
		if(paramStr!="?") paramStr = paramStr + "&";
		paramStr = paramStr + searchStr[i][0] + "=" + searchStr[i][1];
	}
	return paramStr;
}