function cfm_msg() { if($("#length").val() == "") { alert("Please enter the length"); $("#length").focus(); return false; } if($("#width").val() == "") { alert("Please enter the width"); $("#width").focus(); return false; } if($("#height").val() == "") { alert("Please enter the height"); $("#height").focus(); return false; } $("#form").submit(); }
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Find out how much you can save by switching to CITYGHOST LED panel light
 
Room Space
Length M / Width M / Height M
Illumination(Lux@Working Desktop)
Corridor (100 Lux)

Pantry/Toilet/ kitchen/ Hospital wards( 200 Lux )

Office/Meeting room/factory workshop/ School classroom / Library (300 Lux)

Supermarket/shopping mall/  ( 400 Lux)

Hospital clinic ( 500 Lux)

Precision work area ( 750 Lux)