How to Pass Parameters to a CGI

Hi, everyone, I want to pass several parameters to a CGI program run on another server. The following source of that program shows the parameters that need to be set manually. ------------------------------------------------------------------------------------------ <FORM name=organism> Select a dataset: <SELECT> <OPTION value =" AGRO">A. tumefaciens C58 <OPTION value =" VCHO">V. cholerae N16961 </SELECT> </FORM> ...... If displaying relative data values, use <input type=radio name=numcolumns value=1 checked style="background-color: white" onClick="this.form.column2.value=''"> a single data column <input type=radio name=numcolumns value=2 style="background-color: white" onClick="this.form.expressiontype.selectedIndex=1"> the ratio of two data columns <p> Data column (numerator in ratios): <textarea name=column1 cols=3 rows=10></textarea> <p> File containing experimental data (NOT a URL): <input type =" file" name =" datafile" > <p> ------------------------------------------------------------------------------------------ Could anyone please tell me how to set the parameters like that using PHP/where to find relavant information? Thanks in advance. -Minghua Yao