ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false

puce0 = new Image();
puce1 = new Image();

presentation1=new Image();
presentation2=new Image();

irrigation1=new Image();
irrigation2=new Image();

assainissement1=new Image();
assainissement2=new Image();

potable1=new Image();
potable2=new Image();

gaz1=new Image();
gaz2=new Image();

emballage1=new Image();
emballage2=new Image();

contact1=new Image();
contact2=new Image();


//images pour la page d'accueil
presentation11=new Image();
presentation12=new Image();

irrigation11=new Image();
irrigation12=new Image();

assainissement11=new Image();
assainissement12=new Image();

potable11=new Image();
potable12=new Image();

gaz11=new Image();
gaz12=new Image();

emballage11=new Image();
emballage12=new Image();

contact11=new Image();
contact12=new Image();

// chargement des images dans le cache


puce0.src ="img/puce1.gif" 
puce1.src ="img/puce2.gif" 

presentation1.src="img/presentation11_en.gif"
presentation2.src="img/presentation12_en.gif"

irrigation1.src="img/irrigation11_en.gif"
irrigation2.src="img/irrigation12_en.gif"

assainissement1.src="img/assainissement11_en.gif"
assainissement2.src="img/assainissement12_en.gif"

potable1.src="img/potable11_en.gif"
potable2.src="img/potable12_en.gif"

gaz1.src="img/gaz11_en.gif"
gaz2.src="img/gaz12_en.gif"

emballage1.src="img/emballage11_en.gif"
emballage2.src="img/emballage12_en.gif"

contact1.src="img/contact11_en.gif"
contact2.src="img/contact12_en.gif"

//images pour la page d'accueil

presentation11.src="img/presentation1_en.gif"
presentation12.src="img/presentation2_en.gif"

irrigation11.src="img/irrigation1_en.gif"
irrigation12.src="img/irrigation2_en.gif"

assainissement11.src="img/assainissement1_en.gif"
assainissement12.src="img/assainissement2_en.gif"

potable11.src="img/potable1_en.gif"
potable12.src="img/potable2_en.gif"

gaz11.src="img/gaz1_en.gif"
gaz12.src="img/gaz2_en.gif"

emballage11.src="img/emballage1_en.gif"
emballage12.src="img/emballage2_en.gif"

contact11.src="img/contact1_en.gif"
contact12.src="img/contact2_en.gif"

// survol des images
function show(sens) {
switch(sens) {
	case "entree1" :
       document.e1.src = puce1.src 
	   document.m1.src = presentation2.src
       break;
       case "sortie1" :
       document.e1.src = puce0.src
	   document.m1.src = presentation1.src
       break;
    case "entree2" :
       document.e2.src = puce1.src 
	   document.m2.src = irrigation2.src 
       break;
       case "sortie2" :
       document.e2.src = puce0.src
	   document.m2.src = irrigation1.src 
       break;
	case "entree3" :
       document.e3.src = puce1.src   
	   document.m3.src = assainissement2.src   
       break;
       case "sortie3" :
       document.e3.src = puce0.src
   	   document.m3.src = assainissement1.src   
       break;
	case "entree4" :
       document.e4.src = puce1.src   
       document.m4.src = potable2.src   

       break;
       case "sortie4" :
       document.e4.src = puce0.src
       document.m4.src = potable1.src   
       break;

	case "entree5" :
       document.e5.src = puce1.src
	   document.m5.src = gaz2.src
       break;
       case "sortie5" :
       document.e5.src = puce0.src
	   document.m5.src = gaz1.src
       break;

	case "entree6" :
       document.e6.src = puce1.src   
	   document.m6.src = emballage2.src   
       break;
       case "sortie6" :
       document.e6.src = puce0.src
	   document.m6.src = emballage1.src   

       break;
       
   	case "entree7" :
       document.e7.src = puce1.src   
	   document.m7.src = contact2.src   
       break;
       case "sortie7" :
       document.e7.src = puce0.src
	   document.m7.src = contact1.src   

       break;

	case "entree11" :
       document.e11.src = puce1.src   
	   document.m11.src = presentation12.src   
       break;
       case "sortie11" :
       document.e11.src = puce0.src
	   document.m11.src = presentation11.src   

       break;
	case "entree12" :
       document.e12.src = puce1.src   
	   document.m12.src = irrigation12.src   
       break;
       case "sortie12" :
       document.e12.src = puce0.src
	   document.m12.src = irrigation11.src   

       break;
	case "entree13" :
       document.e13.src = puce1.src   
	   document.m13.src = assainissement12.src   
       break;
       case "sortie13" :
       document.e13.src = puce0.src
	   document.m13.src = assainissement11.src   

       break;
	case "entree14" :
       document.e14.src = puce1.src   
	   document.m14.src = potable12.src   
       break;
       case "sortie14" :
       document.e14.src = puce0.src
	   document.m14.src = potable11.src   

       break;
	case "entree15" :
       document.e15.src = puce1.src   
	   document.m15.src = gaz12.src   
       break;
       case "sortie15" :
       document.e15.src = puce0.src
	   document.m15.src = gaz11.src   

       break;
	case "entree16" :
       document.e16.src = puce1.src   
	   document.m16.src = emballage12.src   
       break;
       case "sortie16" :
       document.e16.src = puce0.src
	   document.m16.src = emballage11.src   

       break;
	case "entree17" :
       document.e17.src = puce1.src   
	   document.m17.src = contact12.src   
       break;
       case "sortie17" :
       document.e17.src = puce0.src
	   document.m17.src = contact11.src   

       break;
       }

}

function getPage(id)
{
	a = id
	wt = 478
	ht = 600
	leftPos = (screen.width-wt)/2 
	topPos = (screen.height-ht)/2 
	popWin1 = window.open(''+a,'_blank','toolbars=no,resizable=no,scrollbars=yes,left='+leftPos+',top='+topPos+',width='+wt+',height='+ht) 
}