function correction (option01) 
{if (option01.surface.value <= 100)
{option01.m.value = 250}
else
if ((option01.surface.value >= 101) && (option01.surface.value < 171))
               {option01.m.value = option01.surface.value*3.50
               option01.m.value = (Math.round(option01.m.value*100))/100}
       else
               if ((option01.surface.value >= 171) && (option01.surface.value < 301))
               {option01.m.value = option01.surface.value*3.50
               option01.m.value = (Math.round(option01.m.value*100))/100}
               else 
                       if ((option01.surface.value >= 301) && (option01.surface.value < 501))
                       {option01.m.value = option01.surface.value*3.50
                       option01.m.value = (Math.round(option01.m.value*100))/100}
                       else
                               if (option01.surface.value >= 501)
                               {option01.m.value = option01.surface.value*3.50
                               option01.m.value = (Math.round(option01.m.value*100))/100}
}

function saisie (option02) 
{if (option02.surface.value <= 100)
{option02.m.value = 550}
else
if ((option02.surface.value >= 101) && (option02.surface.value < 171))
               {option02.m.value = option02.surface.value*5.50
               option02.m.value = (Math.round(option02.m.value*100))/100}
       else
               if ((option02.surface.value >= 171) && (option02.surface.value < 301))
               {option02.m.value = option02.surface.value*5.50
               option02.m.value = (Math.round(option02.m.value*100))/100}
               else 
                       if ((option02.surface.value >= 301) && (option02.surface.value < 501))
                       {option02.m.value = option02.surface.value*5.50
                       option02.m.value = (Math.round(option02.m.value*100))/100}
                       else
                               if (option02.surface.value >= 501)
                               {option02.m.value = option02.surface.value*5.50
                               option02.m.value = (Math.round(option02.m.value*100))/100}
}

function saisieOption03 (option03) 
{if (option03.surface.value <= 100)
{option03.m.value = 900}
else
if ((option03.surface.value >= 101) && (option03.surface.value < 171))
               {option03.m.value = option03.surface.value*9.00
               option03.m.value = (Math.round(option03.m.value*100))/100}
       else
               if ((option03.surface.value >= 171) && (option03.surface.value < 301))
               {option03.m.value = option03.surface.value*9.00
               option03.m.value = (Math.round(option03.m.value*100))/100}
               else 
                       if ((option03.surface.value >= 301) && (option03.surface.value < 501))
                       {option03.m.value = option03.surface.value*9.00
                       option03.m.value = (Math.round(option03.m.value*100))/100}
                       else
                               if (option03.surface.value >= 501)
                               {option03.m.value = option03.surface.value*9.00
                               option03.m.value = (Math.round(option03.m.value*100))/100}
}

function saisieDWG (option04) 
{if (option04.surface.value <= 100)
{option04.m.value = 1300}
else
if ((option04.surface.value >= 101) && (option04.surface.value < 171))
               {option04.m.value = option04.surface.value*13.00
               option04.m.value = (Math.round(option04.m.value*100))/100}
       else
               if ((option04.surface.value >= 171) && (option04.surface.value < 301))
               {option04.m.value = option04.surface.value*13.00
               option04.m.value = (Math.round(option04.m.value*100))/100}
               else 
                       if ((option04.surface.value >= 301) && (option04.surface.value < 501))
                       {option04.m.value = option04.surface.value*13.00
                       option04.m.value = (Math.round(option04.m.value*100))/100}
                       else
                               if (option04.surface.value >= 501)
                               {option04.m.value = option04.surface.value*13.00
                               option04.m.value = (Math.round(option04.m.value*100))/100}
}

function saisie3D (option05) 
{if (option05.surface.value <= 100)
{option05.m.value = 2000}
else
if ((option05.surface.value >= 101) && (option05.surface.value < 171))
               {option05.m.value = option05.surface.value*20.00
               option05.m.value = (Math.round(option05.m.value*100))/100}
       else
               if ((option05.surface.value >= 171) && (option05.surface.value < 301))
               {option05.m.value = option05.surface.value*20.00
               option05.m.value = (Math.round(option05.m.value*100))/100}
               else 
                       if ((option05.surface.value >= 301) && (option05.surface.value < 501))
                       {option05.m.value = option05.surface.value*20.00
                       option05.m.value = (Math.round(option05.m.value*100))/100}
                       else
                               if (option05.surface.value >= 501)
                               {option05.m.value = option05.surface.value*20.00
                               option05.m.value = (Math.round(option05.m.value*100))/100}
}